The grass, or in this case community, is always greener on the other side. Haven't you heard?
I've seen people trash WoW's community on this forum, saying how they're fleeing this game and its players to go someplace better. Often FFXIV.
Then I see them in other threads doing as much whinging about that game and its community. Makes me think that the problem isn't with the communities, if you get what I'm sayin'... In fact, most of them are so toxic whenever they do complain (which is a lot, every day in some cases) that I KNOW they're part of the problem.
All games have this one issue in common: People. People gon' people, doesn't matter where you go. I was met with insane levels of toxicity from guys when I tried to enter DnD even. Finding nice people is as easy as joining a guild with a zero-tolerance for drama and shitty behaviour, run by adults. What some of those complaining the most about bad communities would refer to as a "Carebear Guild".