I pay for all the accounts, so I really do not see this as a violation. If anything my wife playing her own account would be a violation lol.
What would WoW's goal be in banning me, the usage is from the same household and unless they came to my house and physically saw either one of us playing the other person's main account I could not see how blizzard could define any sharing.
I believe WoW's rules on account sharing is more interested in single accounts being used by multiple users at different locations and also possibly any account hacing which could happen in the process.

But what about my original question????