Dead by Daylight.
The community is absolutely toxic in a very weird way. I've played other games with famously toxic communities but in Dead by Daylight it has a strange spin. Some players heavily identify with the killer/survivor side and feel personally attacked by everything "the other side" or the developers do.
Imagine bringing Tumblr fandoms into an asynchronous and highly competitive Us VS Them game.
You will regret the day you cross ways with either an unhinged player of DbD who will stalk you throughout the internet. Or someone who streams this game and their unhinged fanbase.