We have new people all the time. There's no way everyone could know unless she publicly stated it or contacted everyone personally.

And she did blackmail. I have spoken with her personally about it last year when it happened. She also knows they're posting this.

I'm not trying to be harsh- I don't personally care for her, she fucked with someone I care about, and that's an automatic black mark for me. However, I do think Tessa is a generally good person, and had good reasons for doing it, but it doesn't erase how she did it.