Why does everyone hate Ani so much?

Can someone please explain to me why everyone or almost everyone on this subreddit hates Ani so much or what’s the worst she could’ve possibly done, besides sleeping with Bryce and then telling Jessica about it?

This is not to defend or argue for her as the best or most perfect character on the show. I’m just curious why a lot of people on here seem to view her so negatively as if she’s done anything deplorably wrong.