I think the 'first pledge, first serve' mechanic is good enough. I don't see why you should specifically moderate who picks what name when it comes to names used in cRPG, as you won't do it for names used in other games. If Panos pledges quickly and reserves the name GTX, then so be it. Because if Ballswaggler that played Pony Simulator 2k12 reserves the name of Floppydong that also played Pony Simulator 2k12, you won't do shit either.
I find it stupid how much people want to be rewarded for having played cRPG in a completely stand-alone game, especially if they lacked the decency to fork over 50 or even 15 euro's at the start of all this. cRPG players should not enjoy any rights over pledgers coming from other games, why the fuck should they? You played a free mod, good job, get over it. Good way to alienate complete newcomers. I believe the intention is to have a whole lot more people take an interest in this game than this inbred little community of 2000 players.