The only have 1 thing against Bajan and that is the way that he handled his ban on MCSG, if I remember correctly he complained a lot and made some dumb reasons as to why BSM should be allowed, and how Optifine is as unfair to use as BSM. Other than that I don't mind Bajan or Jerome, I actually find Jerome quite funny.
That's just the type of humour they use, and judging by their subscriber base it seems to be working very well for them. They both have the ability to be mature, probably more so than you.
He might be worse than you, but I doubt he's "pretty bad" compared to you, he may even be better. Even though he uses BSM he still demonstrates very good PvP techniques.