Well, it seems logical to dismiss feature requests with few votes—sometimes ZERO votes. Of course, some of that may be related to the fact that those who could have considered voting for the request had no vote left at the time, and have not necessarily undertook to review all the old pending requests they could vote for now that they have got some votes back (the review process is now closing 10-11 month old requests…).
At least, something is done which is much, much, better than leaving requests pending undefinitely.
@ABain has possibly drawn the short straw when duties were allocated in the team. 
Thanks for the cleaning work; someone has got to do it.
(And counterexample here.)