You can't do anything.What?
GTA 5, they use something else to get my stuff. They've sent me my IP address on Ok nstagram and have ssid they're gonna boot me right before I get forced offline.1 what’s the game? If I were you I’d think about contacting creators/ developers. If it’s an mmo or a start up game the developers would be interested in this. Bullying is generally frowned upon and they are usually willing to help out if you have evidence. The evidence probably wouldn’t go down with devs if they want a clean friendly game.
another strategy would be delete history restart new character steer clear of users such as those mentioned above if ya know their player id or rather ip .