Oh, I agree that it doesn't claim to be any kind of valid html, its just... distressing, like a half chewed up rabbit on the side of the road.
Admittedly CSS2 can't do a lot of the things that we'd like it to, but tables for layout are still nasty.
I'm sure that most of the people who've replied here or many many others in the miRC community would love to help out in reauthoring many of the pages into, if not tableless HTML, valid HTML and so forth.