But that's pretty much what we've already got, since, as I've shown, most people use CSD A7 to mean "blatantly non-notable". I just want to bring it out into the open.
People adding speedy tags do, but do the admins going through CSD read it that way? I don't know how often A7 tags are removed, as far as I know, there isn't an easy way to tell. I would hope admins know better than to delete an article under A7 that asserts notability.