There's spitzy members from all years, but after a post search I'd have to say that 2004 and 2003 seemed to have a lot of them.
Ah, but you forget that there was a board reset back in late 2000/early 2001, and thousands of posts were lost. If those were factored in, you may be convinced that 2000-2001 was where all of the great members came from.