one of the many cultural coronal mass ejections from the internet in the early aughts was the "pirates versus ninjas" "debate". (that wikipedia page is wrong to place it in the "late 2000s" - it was in full swing by 2004 at the latest.) it was an excuse to have goofy, zero-stakes arguments with peers, and therefore catnip for dumb teenagers. you could do more than have mock arguments, though. you could get even stupider with it.