The significant change in personality a forum poster gets shortly after he/she realizes the kind of authority they have after being ranked to a moderator status, enabling that individual to be aggressive and assertive instead of passive like they usually were before they had power.
Moderator: Cool it with the flaming, I've had enough out of you already. I'm about a hair's width away from locking this thread.
Forum poster: Someone's moderator balls have dropped recently.