The job of a mod is to prevent exchanges such as this:
"I don't wanna talk to you no more, you empty-headed animal food trough wiper! I fart in your general direction! Your mother was a hamster, your father smelt of elderberries, and your tank looks like crap!"
No more, no less. I don't think it is necessarily a matter of experience, skill, etc. I think that Sammy had the best line in his former sig, the point of which was "just because I am a moderator doesn't mean I have all the answers."
And broomer, I think at the last shark meeting it was decided that we were actually now the "Knights Who Say 'Ecky-ecky-ecky-ecky-pikang-zoop-boing-goodem-zoo-owli-zhiv." Might be the reason they aren't letting you back in