A large part of it is a fanbase of Chapo Trap House which has a particular brand of humor that is rampant with esoteric inside jokes that are vulgar as a point, let alone to the extreme.
That humor, especially without that frame of reference, usually offends your average internet denizen.
Sure, but to my point: if you don't know or are unaware of the kind of humor associated with their core userbase, you might not be able to tell the difference at face value.
I maintain the best way for the uninformed to try and understand Hexbear users is to learn about or listen Chapo Trap House regardless of your politics/agreement. It puts a lot of their antics into context.