Relevent Dates. I LOVE WIKI!
* JLA: Year One #1-12 (1998) * JLA #18-21 (1998) * Flash #142-159 (1998-2000) (The Angle Man Appearance was 1999) * JLA #43-58 (2000-2001) * JLA #60 (2002)
The thing is, Replicant could steal/absorb powers from devices/machines, not from people. So what probably happened was Waid decided he wanted to give Replicant teleportation powers, he flipped through "Who's Who" or something trying to find someone with a DEVICE for doing that, and he was so happy when he found someone that fit the bill that he didn't give the whole "pre/post Crisis" thing much thought. It was a blunder, but I don't hold it against him. I mean, what sort of twit would make a big deal about those two pages?