How high does my power level have to be to get all the references in gintama? I'm considering watching it after I catch up with the SnK manga inb4 shit taste, a friend said I should try it and I want to participate in the threads
You'd have to frequently watch Japanese TV to get all the celebrity references. Also speak colloquial Japanese pretty well.
what about the references to other anime
Learn to type man.
I'd say about Sugita level.
They probably just reference a bunch of Jump manga or popular tv anime.