The use of cloned accounts is extreamly common- especially for professional artist. And there are many many here. lol- many accountants don't like to submit a reciept with a user name like 'satans little helper' or what ever on it to a cliant. But the question- after many many years here the only problem I've had with it is from holy rollers. Sky piolets with a mission who use it as a tool to force there agendia. And I must say, it's been an effective weapon for them, considering just how reactive the admins have been. Responsive reaction to single complaints. Individual trolls are easily handeled by contacting a mod.