This is one of many reasons I have steered clear of internet poker. If this guy did abuse the disconnection rule, then I am happy they nailed him.
What about the other people that abuse it but are not caught?
What about the person who was honestly disconnected?
These are enough concerns to keep me away, but I do have others. I don't think everyone should stay away from online poker. All ventures carry a certain amount of risk and reward. If you feel that the risk of getting screwed is justified by the reward (of winnings or simple fun) then by all means play. Me? I prefer human games and never have trouble finding one.