I know a guy who had some old nudes from a xalimo he was with. I don't know him well but he ended up sending a nude to the group chat. Turns out the xalimo is now married to someone else. I told him to delete the pic since it was disrespectful to keep a pic around like that and sharing it around especially if she was married to another man. I don't know if he did delete it or not but he hasn't sent that picture to the group chat since I told him about it.
Exposing is just straight up evil.
It does hurt the females reputation pretty bad especially in the Muslim community. Since pre Marital sex is looked down upon, dudes wouldn't want to marry a chick who is known for having sex with others and etc. even if you don't even know the chick well it can somehow convince you to stay away from the chick.especislly if multiple people talk about her history in conversations and etc
Thats really sad, good for you on the advice you gave him! Honestly, never be dumb enough to send out anything that can be later used against you. Some men are good with their words, and unfortunately females fall into that trap.