verbal abuse during a game. what happens on this site?


If you report it, they might take action. What that action is depends on the case in question.
Sometimes it can be a warning, in extreme cases, with repeat offenders they can probably even close the account, and everything in between. You will not know what the punishment was.
That is the technical side of it.
In a practical sense, I would turn off game chat for everyone but friends (settings - social - game chat - friends only). Not ideal, but it eliminates distractions and unwanted stuff. If you feel that is extreme, the other option is to just accept that it will happen from time to time and report it when it does.
Personally, I do not like chatting during games, so turning the chat off works for me.
What is done about people like this?