EXO-Ls vs. Shawols is a mess I just refuse to touch. It's korean fans' deal, they are the ones that do all that messy stuff.
Oh and I think caught EXO fansites were sasaeng fansites as well. Those are just straight up disgusting.
The biggest fight I've ever got probably was when SM fandoms decided to gang up on EXO for getting Tokyo Dome concerts

ARMYs are kids full of "aegyo" in comparison to SM fandoms