I never understood why but my SIL always hated me. She always makes snide remarks about my boyfriend or anything related to me. We dont get along well.

She knows that I had many boyfriend's before my current boyfriend and she paints me as a slut. Last month at a dinner she told my boyfriend that he should not get his hopes up because I was not a keeper. My bf was hurt and he started feeling a bit insecure after that. 

So, I discovered that she was a Chaturbate cam girl when my friend came across her on the website( my brother doesn't know about this) and I decided to have my revenge. So I posted her Chaturbate link in the family group chat when she was live masturbating on the cam. All hell broke loose and everyone was shocked. Her family is extremely conservative and they were apalled. 

Later, she called me and I really felt sorry for her. She was crying and apologized to me and asked me if I intended to do anything more. My brother was mad at her and this caused a serious rift in their relationship and her parents told her that they have nothing to do with her anymore.

Did I go too far? AITA?