For that topic, which I hope won't continue, snakes don't need clothes underwater. their scales provide less friction, which is what they want. the armor they put on them in WoW, and maybe Warcraft 3, was for appearances, so they didn't look like just another naga. What do you think of when you see a murloc? Basically, "Oh, them again. wonderful", because you know that unless you go slowly and play carefully, you're gonna get mobbed. I doubt the armor does anything to change their stats, in WoW, so it's basically just for looks.