We must have encountered very different online games and communities. Plenty of MMO's seem to have survived well known and endemic cheating without any additional toxicity in the community. No more toxic than the fake outrage when someone loses a loot roll in a dungeon or a pvp round. The "communities" and games usually seem brimming over with toxin with or without cheating. It's a good part of why I now avoid anything multiplayer.

Few seemed to actually care if the srever's elite guilds were using no wall hacks to get loot or someone was running with 6 chars receiving identical input, or botting their dailies overnight.