Is what she's posting on social media impacting you, H and the kids lives? Can you unfollow and block her so not to see her foolishness? If this is causing issues yes your H should address it. If its not I'd block on all avenues and let your H communicate with her when its absolutely necessary. 

Block her on all social media - both you and your husband. Thats what we do. We maintain a really nice distance from her and her shenanigans.

DH is respectful and strives to keep things nice for child, thats it. They are not friends.

Just keep on ignoring her antics. And realize that she is doing her own image management.

The way things seem to go is that the dysfunction that caused the relationship to blow apart, did not go away - as long as they share children it will always be there...

So - do not say anything and block her on social media.

I'm not clear on what you mean by: "should I bring it to someone's attention?" Who?

Unfriend her on social media, stay civil but distant, and let your DH deal with her. They aren't "our" kids, they are BM and DH's kids, and he needs to deal with these issues. 

If she's threatening suicide online and she's putting the children in danger, then heck yeah report that sh*t!

If she's just being a big ol whiney baby on social media and creating a narrative that she's a perpetual victim then just block her sorry a$$!

You have a lot of power here.

Unfriend/unfollow/block. Pull the vaguebooking & oversharing rug out from underneath her. Let her see she’s crying and complaining into an echo chamber. That you (and DH) are no longer a willing audience, when it comes to her online antics. 

Let her search for your Facebook account and not be able to find you. This will send a crystal clear message you are over it.

If someone happens to bring her online rantings up to you - ask them if someone’s in immediate danger or physically hurt. If the answer is “No,” tell them “Great, because you don’t entertain any of bio mom’s social media As The World Turns, fictional nonsense.”

Is they are always the victim. They are always hard done by. And everything is yours and your husband fault. How dare anyone move on without them in the picture. And they feel they must always make there presents known. By either making things diffcult. Using the kids to course trouble. By complaining they never get enough money. By complaining that there kids been taken away from them. By treating you like your the devil. That whatever problems or shitty circumstances they are living in is your and dh fault. The best revenge is just ingore it and get on with your life. Just make whatever arrangements need to be made every week concerning visits or school or who gonna do what for the kids. Then just get on with it. Get rid of all social media that concerns her. She doesnt need to know what your doing and you with her. Who cares if she having a nice lunch or having a whinge about how you are a bunch of  a**holes. In the end

It doesn't matter. Because I'm sure your opinion not that high of her either. You just choose to keep it to yourself and not put it in social media to get sympathy because that all she looking for In the end.

And most likely hoping to get a rise out of you which seems to be working. 

even went to see her old workmates at hubbys company (they worked in same company but different dept) and went on a vindictive rampage trash talking hubby who was a snr vp at the company. 

She played the poor me i’m a single divorced mum and my exhubby won’t allow me to get employed at my own workplace again.

fact is she never worked well at her job, didn’t have a good work ethic, many errors and no quality or standard of work so hubby had every right to blacklist her along with the fact she had her police dad and brother threaten to shoot and stab hubby to death.

eventually her friends saw her true colours that she was being petty, bitter, over dramatic and had to get over the fact she is divorced.

mind you she had been ho-bagging her ex high school sweetheart a year prior to their separation and married the week divorce was finalized but for sympathy sake played the “i’m so traumatised that my hubby divorced me”

yawn she still plays the same card even now, skids are too dumb, brainwashed and blind to see her crap... just try ignore it as best you can. Smart people will see through her crap anyways

I'm new to ST. I have read the ettiquitte guide and many blogs in an effort to become familiar with folks. I am learning there are many long-time regulars who share no-nonsense, well thought out, often valuable advice and thoughts. Overall, I am impressed. Having said that, I am going to have to chew on thoughts previously expressed about the word 'our' because I regularly use it too. I am NOT trying to stir the pot, so I'll respectfully leave it there; I'm going to search through previous blogs to gain better perspective.

You mentioned your skids are young. Do they have social media accounts? Access to them? 
 

The BM of my skids uses social media multiple times daily to record her life. She re-wrote history in the making. She shaded, distorted, manipulated, and downright lied about situations and events with the kids, and it used to drive me mad. I carried a knot in my stomach and was continually angry with righteous indignation. I wanted to set the record straight!

With approximately four years' hindsight, the best thing I did was to first "UNFOLLOW" and then "UNFRIEND" and ultimately "Block" her. The amount of frustration and angst in my life dropped 90%. It did take several months to stop wondering (or checking) what she was up to; it took time to just let go of trying to know and/or wanting to set the record straight. After all, whose record is it? I eventually realized, as silly as it seems, that her postings of events was not some official public record.

You, your H and skids will know and remember the truth. Unplug from the drama BM tries to create. Best wishes ~

I've been with my DH for 6 years now, nearly 7. My SD was just shy of 3. DH and BM split when SD was under 6 months (unplanned pregnancy, they were coming to the end of their relationship but decided to move in together and try to make something out of it. Didnt work) so they were already pretty settled in their shared custody arrangement. 

First thing my DH did when he and I were serious was block BM and her closest friends from my social media accounts. He had already done it on his own. In nearly 7 years I've had 2 conversations with BM. One in the early days when she was having a freak out thinking I might want to steal her daughter and one a couple of years later about lost socks. 

That's it. 

Any and all communication goes between DH and BM. If DH wants to discuss ideas with me or theres a visitation change he will double check with me but theres no direct communication between me and BM. It's better for everyone that way. 

I really would block her on social media, you cant censor her, but you can control your own reaction. Dont give her the ability to influence your mood. 

Anyone who knows the circumstances knows the truth and anyone who doesn't is clearly not that close so why does their opinion matter? Humans are incredibly judgemental by nature and you will never have a happy life if you measure yourself by other peoples judgement. 

The hardest thing to do as a step parent is to stay in your lane. Be the supportive partner, talk things through but make sure any and all decisions are made by the actual legal and physical parents. THEY need to figure it out. THEY chose to reproduce so they need to fight their way through their own drama and come out the other side. 

In the early days it would drive me crazy how much pretty point scoring both my DH and BM did with each other. But whilst i would roll my eyes at my DH and tell him so, it went no further. Guess what? 7 years on they have figure it out. They are now at a stage where one can call the other (after a period of all communication having to be written email) they come together to help SD with her school problems, heck they have attending parents evening together to show the school they are a United front when it comes to SDs behaviour and education. None of this would have been possible if I had jumped in the middle and berated them for being petty, childish and point scoring back at the start. 

You mean well, that's great, but truly for your own sanity do not allow yourself to care or to be more active than the childrens own parents. 

Love them, bond with them, build a nice family unit like I had. I get on great with SD9, seeing her and DD1 play together fills me with pride. But I will not do more than her own parents, I'm an extra support, I'm a back up if you like.