None, really.
It's the anti-fanons that bother me, at least the ones who constantly whine about a fanon, whether it be shipping, grimdark, Rule 34, etc.
I'm only talking about the people who constantly whine, though. If you don't like something but are respectable about it and don't feel the need to express your hatred for a fanon at every chance you get, then no worries, I'm not talking about you.