Well, against my better judgment, I tried to register on and off this morning.
Nothing but errors. Endless errors. 500, 501, blank screen, "Sorry the server is too busy, please try again later," "Internet cannot display this page" type of errors. I expect this crap from Matty, but the SDCC people are usually so professional.
Maybe the 3rd time will be the charm.
Just tried again while typing this.