Moderatorlomania

Combination of "moderator" and "megalomania"

When power goes to the head of a moderator of an online forum.

They start acting as though their intelligence, judgement and opinions are superior to non-moderators.

Common symptoms: talking down to people, patronising them, banning people who post opinions differing from their own, being cliquey with other moderators.

"That moderator banned me for disagreeing with his political opinions. He's in the advanced stages of moderatorlomania."

Mod: "Another word from you and it's BAN!"

Me: "Uh oh, moderatorlomania!"