As I've mentioned before, the solution to the close vote problem is simply a matter of encouraging more voter participation. With over 18,000 community members with Vote-to-Close privileges, the queue can be handled very quickly if everyone participates.
This idea would certainly encourage participation. One only needs to look at the Review Queues to see what incentivizing does to participation. Reviewers are very eager to review posts to get a couple of shiny bits of pixels in their profile. Given how nuts people go over reputation, they would be tripping all over themselves to clear out that queue.
One only needs to look at the Review Queues to see what incentivizing does to participation.
This is just a small sample of the more highly voted complaints, but there is an entire tag dedicated to review-abuse, so you can imagine the scope of the problem. The review audits have helped curb this abuse, but it still it an issue, and took almost 6-months to really get a handle on it.
And in general bad reviewers, while not helpful, few are as actively harmful to the site as abuse of close votes.
A massive influx of robo-close voters will do nothing but leave us with mess of misclosed questions that could possibly take forever to untangle.