Impostor is a digital Proteus who changes his persona whenever it suits his purposes. That 21 year old co-ed from Arizona State you met in a discussion forum may, in fact, be a retired steel worker from Pittsburgh. Impostor will claim to be black, white, rich, poor, young, old, straight or gay, and if he's good he can pull it off - at least for a while. Of course, there are sinister, even criminal reasons Impostor would lie about who he is, but more often he fakes it to lend weight to his arguments, or simply to amuse himself. Impostor's requisite imagination and good writing skills can make him a formidable enemy, but even the best Impostors will eventually blunder and reveal their true identity. Once uncovered, Impostor always flees the field, but he may return in another form - you just never know...