rankings used to be updated daily around 5am (our evenings downhere), but Quizzyland's size went beyond any expectations the Head Honcho
aka Terry had, so he turned it off in mid-2001, as it was crashing the site .. he manually updated the rankings about 2 or 3 months ago, but there are now so many quizzes online the site went down he did it (either that, or he turned it off)
I suppose Terry'll need to look at the structure of this place, and the stats it generates, as it's now feeding on itself - and has outgrown whatever code he'd written, or whatever expectations he had when he wrote it .. I'll stand corrected, but that's how I read it