just leave the toxic player alone so they will get bored of insulting you and eventually leave the server
its the most effective way of countering toxic players and pm everyone's doing it right now
What about new players that join the server and the first thing they're met with is(also they don't know how to mute people) :
"[Warrior] Martits : are you fucking mentally ill?"
"[Warrior] Martits : were you beaten when you were young?"
"rackman : IL RAPE YOUR GRANDMOTHER TOO"
"[Warrior] Martits : cyka" (common russian insult)
"원숭이 사업 : shut up comatitis"
"bendyxx123 : GO KILL YOUR SELF"
"Jeffmaki : fuck off 12 yr old BTIM fan"
At somepoint we cross the line from trashtalk to pure toxicity and we haven't even talked about voice chat too.
I think if you added a vague "be nice" to the rules it can cover a large part of issues, ofcourse this would mean that each case should be handled independently from all others but that might be the best way to do it, otherwise you'll end up with a word-filter that doesn't really work.