@ROCKONN: You're worried about bias if the community, I understand that. But (unlike you, perhaps) I really do feel like the community as a whole is fairly mature *overall* from the time I've spent on the server/mumble/forums. There might possibly be a handful of biased players that vote to unfairly ban someone only because they dislike them, but the rest of the player base's fairness would outweigh that handful. Also, it's perfectly possible for a mod/admin to be biased in a ban and unfairly punish a player, too, but in that situation there are no other opinions to weigh against them. If people are really uncomfortable with players having a say in bans, then at least let all of the staff have a say, rather then one or two people.
@Njord: Part of becoming a headadmin would be to accept your new responsibilities, and I don't think any admin candidates would be biased towards players that voted them into the positions at all.
On your second point, 'dragging players in' to decide on a ban isn't the right way to word the situation imo, because I know as a player myself and others would sure as hell wanted a say in issues like controversial bans. To be honest, one reason I was willing to become a mod was that i felt my opinion would actually be valid, and I don't think that's a good mentality for players to have. What you say about having other staff members deal with a ban is true, but I feel like others would be influenced by the banning admin/mod and are hesitant to take the ban in a different direction than the original staff member dealing with it, because they are afraid of angering the original banner.
On the third point, do you think your opinion was considered just because you suggested it, or was it taken more seriously because you were seen as 'mod material'? My idea was more like an official nomination 'vote' where players would nominate others for mod and the nominations would be voted on, the top voted ones becoming mod candidates.
On another note, I see a lot of people bringing up that 'it would become a popularity contest' with no real logical reasoning behind the statement. I think a lot of people are severely underestimating the community's maturity and fairness, especially of those who are dedicated players that use the forums/subreddit and would be the ones voting on these things.
Sorry for the long post! :)