A very important part of this entire make-rock-id-q-offtopic story was to delete the old questions so it stops bringing this kind of traffic into the website.
My understanding is that questions have to be closed for a while, and only then they can be deleted.
I cast a delete vote on some of the older closed questions, but we need more than my vote. Apparently there isn't a delete queue like there is for all of the other moderation actions. Some of the question I voted on for deletion still have my vote alone for a very long time now.
Are there any other methods to expedite the deletion of the old closed questions?