this is about severe ill-mannerism and ill-language, that is commonly referred to as toxic behavior in gaming
and there are many vids about that, and this is an example
Now i don't call for a full on hard ban, as this individual(for example) is lvl 159, and that would be devastating, but a warning, and a soft ban of a two month or so would sort it out. or disabling his chat and the like..
