HI GUYS. So, I'm a dork, and apparently I have many dork friends. (HI ILU)
Anyways, years ago, back on GJ, we had this post that had characters from all games, eras, universes (not limited to HP, we had Greek gods and god knows who or what else in there) conversing. And it was lots and lots of fun. There were parents meeting their future kids, Zacharias Smiths trying to form Zacharias mafias, people with the same PBs sorting through all the confusion... it was nerdy stupid cracktastic fun.