Literally nothing pisses people off more than seeing someone do a mistake several times, like not give SS, then watch them jump your neck like an Irish beard for missing SS once.
Or people who have severe struggles in lane then say "Easy" at their very first successful trade/kill.
Nothing provokes toxicity more than wanting to tell someone how much of a hypocritical idiot they are for shaming you over shit they deliberatedly failed several times before.
Then they ofc tell you to "go cry more" while calling you bad, spam BM like the complete fucking idiots they are and intentionally laugh-spam you whenever they see you CS.
jesus christ, some games in LoL feel like american political debates.