I'm with tailsmastermind on this one. I get the feeling that some of you guys are really superstitious and just need better names, because "Super Sonic" isn't particularly creative, nor is Amy, Light, Hyper Knux, Andy, James, or any other commonly used name you could think of. If you had some creativity in your alias-scheming, there would be a lot less confusion around here. You don't see anyone else choose the nickname "Blue Warrior" on netgames, do you? That's why I still stick with it when I'm online.
As for actual fakers, you know you're being impersonated if your name is something like DuckMissile, Emerald Cutter, or CrabMeat 2.0 and someone decides to use it.