One of Blizzards rules is that you are not allowed to share an account unless it is with a minor.
Has anyone been caught and punished for it ?
There is a MVP chastising someone on the EU forums for not abiding by the rules, but also admits account sharing herself in the past.
On this thread http://eu.battle.net/wow/en/forum/to...1585121?page=2
Is it you can break the rules as long as you don't get caught. ?
Probably the same as buying gold, nobody does it but there are a lot of fat Chinese gold farmers selling it.