Not yet I haven't, but I've been on the lookout for it ever since. Googling things about it now maybe it was cotton wool disease/columnaris. Don't go quoting me on that though, until someone with more knowledge on this chimes in.
As for tank denomination...I really don't know. Since Jenkins was the only occupant at the time I just tore the whole thing down and wash everyone really well with hot water and vinger, then rinsed rinsed rinsed.
As for the names....yes...definitely a WoW player. You reggnized Leroy and Jenkins right away....there's also Wrynn's (as in Varian! :)) and Thera (which is short for 'Therazane'). All my betts with have names based from WoW. Two things I really enjoy combined!