I can name a couple off my head.

One dude I was interacting with for a while became toxic and blamed everyone for his situations. He ended up blocking me after I called him out on his toxic behavior, which hurt for a while because while I didn't appreciate the way he constantly cussed me out in messages, I still thought he was an ok guy and I'm hoping he's doing better now even if I'm still blocked

One guy messaged me right after I followed him saying that he wasn't looking for friends: only a boyfriend. Then told me I wasn't a good candidate because I'm closeted.

But the main one that tops all of this was when some random guy messaged me and my boyfriend telling us that we're a bunch of whores. Then even going on my AD and telling me how disgusting my body looked. I'm still trying to get over that interaction, but I can safely say that has been the worst I think.