Hostile users attempt to annoy and offend the community chatroom or forum and it's moderators every way they can, resulting with the moderators banning them despite many warnings and guideline notices given by the the community or moderators towards that hostile user and may even close their account.
Moderator: I've asked you three times, could you stop insulting the community and myself?
Hostile User: Screw you!
*Hostile user has been kicked out of the room by Moderator*
Community Member: What was the point of that!
Some Random User: That user has committed cyber-suicide by moderator!