Well, just tweets are fine. She's on Twitter, after all, and is, like St. John, more than happy to publicise herself and their relationship (in spite of her talk of it being a private thing). In fact, I see she's been really promoting his case since: https://twitter.com/EmmakEnglish
Abuse is a different matter entirely though.
I understand those who posted the abuse on YBIG were also banned by a moderator immediately.