Back in the early days of the site, there was a question about letting the community close questions through the normal 5-votes-to-close mechanism. That was a little impractical at the time because we had very few high-rep users, and three of those were moderators (whose close votes are automatically binding), so if we (moderators) left questions to be closed by the normal mechanism, it would take forever.
Now, though, things are different; we have 24 users with over 3000 reputation, the threshold required to vote to close questions, and several other users are close to reaching 3000 rep. So I would like to encourage high-rep members of the community to step up and vote to close questions that need to be closed. I know I close a lot of questions myself but I have been and will be trying to back off on that, to allow the normal community closure mechanism to work more often.
While I'm at it, I'm curious about why it is that I don't see a whole lot of nonbinding close votes. Is it just that the moderators have been too quick to close questions, so other high-rep users don't get to vote on them? Or do high-rep users just not inclined to bother with that sort of thing?
UPDATE: We do have a meta question for candidate closures that we could use to list questions for 3000+ users to vote to close. I'll start posting some links there in lieu of actually voting to close myself.