Some of my favorites:
You might start in the archives with posts by a Swedenborgian mystic named "Iacchus," whose posts may still include his sig link to his own site and forum, which are hilariously weird. Another of my favorites was "Davidjayjordan," a polyamorous fundamentalist numerologist who carried on quite long and eventually abusive debates, many based on his stubborn insistence on theories that depended on demonstrably incorrect math, including the distance to the moon. DJJ got himself banned. Iacchus is still technically suspended after a registration error, but has never returned. The now banned Jerome Da Gnome and Tokenconservative will provide some entertainment on the political front.
A more polite unbanned member, "lightcreatedlife@hom" rarely if ever stepped out of his own thread, in which he was attempting to explain a theory of everything. Unfortunately, he was not very good at it, and seems to have abandoned us. He had a web site, but unfortunately it comes up empty now. His accidental filling in of the wrong box in his registration, resulting in an incomplete address, is an omen.