Poker Syndicate also bans it and their software also prevents it (as I found out when I got disconnected and then tried to get my seat back with less than my last stack).
If it takes one level of fairness and equality out of the game, then it's making it unfair to some people. I have no problems playing anyone, even if they are way better than me, as long as it's on a fair footing. Let their skill and experience beat me, not cheating.
J