Since begin of May only three non-mod users reviewed any tasks in the Close Votes Review Queue. Add two or three users that cast close votes outside the queues and another very small number of users that use flags to indicate the need to close a question. While I would like to express my gratitude to those users I would kindly like to request (read: urge) the rest of the community (specifically 3k+ users) to consider visiting the review queues and cast close votes or vote to leave open. Your action helps to keep the site on track and defines the boundaries of the kind of question we (the community) deem fit for our particular corner of StackExchange.
Right now there are just 63 items in the queue waiting to be reviewed. So the task is far from being insurmountable for the thirtyeight 3k+ rep users, even though that number includes the four elected moderators and unfortunately quite a number of inactive users.
Please note that it takes 5 close votes to reach the closing threshold and that close votes age away. Since moderator votes are binding, i.e. a vote will reach the threshold and take effect immediately if a single moderator casts a vote, we moderators would rather not cast close votes unless absolutely necessary:
The system is not intended, I think, so that sites are effectively maintained by one or two all powerful figures -- that is not what the role of moderator is supposed to be [..]
Right now two of us moderators keep visiting the queue and vote to close if an item has collected at least two or three community votes. We also skip quite a large number of reviews to leave those up you, the users, because, again, that is how the system is supposed to work. It will, however, work only with your sustained support. Please help us.
Some more insight on community votes and moderator action with respect to close votes:
Please cast your close / leave-open / re-open votes and visit the review queues... and while you're at it, please consider using all the other tools of community moderation, including up-/downvotes, flags, comments, etc.