As You all may know, Draenei don't tend to have surnames. Well, they don't have them. Yes, yes, some innkeepers seem to have them but most are just easter eggs. So that's it, period, space goats can't have last names.
Unless You're a Shaman. Shamanism is still quite a new thing to the strange, blue creatures with hooves instead of feet. It's... alien for them, since turning into a spectral Wolf or placing a wooden, small structure that shoots fireballs is stranger than flying a spaceship in times gunpowder was just invented.
Back to the point. I think Shamans, due to the fact that they are... weirder to the rest of the Draenei, are getting more isolated, therefor have the option to adopt a surname that has something to do with Nature, maybe Naaru.
Or, we could think of newborn Draenei (maybe after the crash) that were adopted and took their parents surname.
It got me thinking, since I want to make my bluegoat more unique and I think, it makes some sense.
P.S: Yes, some of you may call this a banter thread, but I get the odd feeling of being a basterd from GoT series. But atleast they have surnames, cool or not, they atleast have them.
P.S2: Even Taurens have surnames. Now imagine a Tauren Rogue that's called "Borum Windshadow". I know, has got nothing to do with the subject at hand, but imagine how cool Draenei surnames could be.