Nechomah: You are right, and I think the mods let most of the J screennames alone for that very reason. But “bubka” is one that has already been busted:
http://www.theyeshivaworld.com/coffeeroom/topic/chazal-and-science#post-410219
http://www.theyeshivaworld.com/coffeeroom/topic/chazal-and-science#post-410258