[stackghost]

Pretty sure that "Smurf" originated with the Tribes series, as you could create alias nicknames/accounts that showed up as blue in the player list.

Or at least, that's the first time I encountered the term.

[Cpoll]

The etymology I've heard is that it comes from Warcraft 2, where some top players made Smurf-themed alt-accounts after everyone started dodging them. That may be apocryphal.

[thoughtpalette]

I remember a guy on Tribes literally named Smurf IIRC. +]-[+ SmuRF or something.