Well, Bianca has been bullied by Alice (and since she is legally not allowed to, by her alt accounts), her minions, her brother etc. Most of those posts are either mocking her illness or spreading extreme lies (Alice's alts and Loopy are most guilty of this by their description of the door incident that was 1000x more extreme than what Ella even initially alleged before the judge talked some sense into her). Her partner's daughter first vandalised her house and shoved her and then filed a textbook DARVO RO against her. She was portrayed as a child abuser, when in fact she is a semi-disabled woman that was abused by a teenager if anything (and as a extra layer that teenager is your partners daughter being weaponise by your and your partners abuser). It's mentally enormously taxing when you are accused of something this extreme when you are actually the victim. The Daily Mail has a lot of blood on their hands because they were twisting the court docs to the max in this aspect.
Despite being the most innocent party of this story (at least from the adults) she is probably getting the most grief just because she dates a divorced man. She is blamed all the time for not "letting him go" to fix his relationship with his kids etc. Heck, we are sometimes perhaps even a touch hard to her because we often question whether she actually is with Ioan genuinely or because him (and this drama) gives her the fame she may crave. Of course we are not accusing her, we are just being fair by not ruling this out, but when you are the person in question and you know whether it's true or not it hurts a touch when it's not the truth. I actually thought it was curious that she mentioned why she moved to LA when she did. It's a very common criticism many have on them because that may have messed up the minuscule chance of a good transition for the kids (of course the sane among us know that with Alice this was never going to happen anyway)
And then there may be more Alice-unrelated things in her personal life.
The bullying and lies she is refering to is a lot more than just Alice, I believe, even if she is the root cause of most of it. And I dont think she wanted to make it about Alice specifically.
At the end of the day her post is about how she deals with the bullying that everyone of us can see from many parties. And the things she says she will talk about aren't even anything threatening against oh so poor Alice. Although I can imagine that the explanation for how they got together are abusive spouses, at least that's the only thing that makes sense in the posts context.
As for deleting comments: Bianca has deleted many negative comments about Alice on her page, and most comments now seem to be generally about her bullies. I think it's fine. You really cannot expect her to police her SM, especially when people are actually telling the truth.