Toxic players in general
I realize you can't stop everyone from being toxic, but regardless of the steps riot has taken to curb their negative community, the league of legends community is the most toxic insensitive and down right rage inducing community's out there.
I have never in my life experienced a community so toxic. I know of at least 10 people who don't play anymore because of this reason.
Riot has to be more harsh or take more action against this, because tbh I even am having thought of leaving again, idk why a game exists where people actively try and piss others off to put them on tilt. That Korean girl (can't remember her name) committed suicide 3 years ago BECAUSE of the league of legends community. At that point when a game starts getting people to commit suicide because of it's hostile players, things need to change.
I've actually been harassed, DDOSed and stalked because I did bad in one round of league. after I reported the person TO THE POLICE it stopped. All I'm saying is Riot get your shitty pickles together.