I was rather surprised when I was offered mentor-hood.

It makes perfect sense from a psychological perspective. Handing out badges acts both as a pat on the back and as a subtle method of obligating contributors to maintain or extend their efforts. You'd be amazed how hard people will work to maintain the slightest sign of prestige.

I have no intention of allowing the badge to influence my behaviour, but to fulfil such intentions requires a certain hard-headedness and willingness to displease those who have previously complimented you (and who have the power to withdraw your token of prestige).

However, I don't see the harm in an extensive group of "staff". If nothing else, mentor-hood and advisor-hood (and the rest of the hierarchy) allow users unfamiliar to the forums to recognise members who are more likely (than average) to give good advice.

I am confused about whether I have "powers". I thought mentors didn't, but it appears I could add infractions. If so, I have no desire to use such power.

As for the bans, it does seem rather nazi-like to me; but since the bans are short-term it could function as a slap on the wrist. Or it might upset members, who then leave.

Ultimately, I don't really care. But I share some of your cynicism, and thought you deserved some support for speaking up.