Banning is overly harsh, but there needs to be more of a punishment than just taking away their boosted Vader. If you want to cheat at Solitaire, fine. But this game is a *competition*, and every player they defeated with an illegally-enhanced character received less arena awards than they should have, and is farther behind the power curve because of it.
If the only penalty for exploiting a bug is losing your exploit, then there's no reason at all *not* to do the next exploit. Maybe you won't get caught and have more power indefinitely, or maybe you will and still get to keep all the benefits the exploit got you. No harm done, so the door's open.
EA Staff (Retired)
