This should cheer you up.
http://www.chess.com/forum/view/general/why-does-chesscom-take-away-the-abort-option
Abort game -> must wait until you can join a new one
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Does that feature only work for opponents that abort manually? There have been times where the same person has timed out on me five or six times in rapid succession.
I play a lot of live blitz. I guess there are a few people who think it's hysterical to do the following: do nothing with their first move until the server aborts the game, then join my new game and do it again.
How about a "time-out" whenever you abort a game, for any reason? I think a one-minute ban before you can play again would effectively mitigate this kind of griefing, without punishing people who abort for legitmate reasons.