You shouldn't worry about joke posts. They're relatively harmless.
Instead consider that Kidalex is a loving 11 year old kid who has thrown himself head long into the company of toxic and belligerent starfishs like Grimlock, as if that's supposed to help him become a well-adjusted and functioning member of society. His posts reek of a desperate need for attention, and you can tell this a is kid who holds bitter grudges and can't handle when people come out better than him, treating them like Public Enemy #1 as if these forums are some kind of loving CIA spy game.
I'm so glad I'm not his parents, because my hands would be swollen and sore with all the corporal punishment I'd need to enact to put that boy's brain right again. I wonder if his parents even bother to try and tell him right from wrong, or if they just gave up half way into his childhood.