4.5 hours later, it handles 38/55 comic sites, including one with frames (helen.) It may pick up a few more if keenspace gets unhosed tomorrow. The ad-hoc ones could probably be unified a bit more, a few of them could probably use a "this year" match string. pillars turned out to be more easily handled just by checking the title, and I suspect some others fall to that as well.
It should probably do an insert-and-prune on the rss file, so that I can run it at will.