Well it is with great regret that I must say this.

[BananaBandit]

U buy Windows 8.1, Microsoft still the owner.
You play Rohan, PlW still the owner.
You play CS:Go, Valve still the owner.
You play LoL, Riot still the owner.

You play rohan, PW owns the accounts - yes indeed. So lets put it another way:

Account = rented house. PW = landlord.

I invite my girlfriend into my house and take a run out to pick up some beer to party a little later on. While I am out that girlfriend cleans out the house and takes off.

1. Was it cool for that girlfriend to do that?
2. Would you say the she is innocent of any fault at all?
3. Should she not be punished?
4. Is she not a thief?

Account sharing is a no-no. You should not trust your account to anyone that you would not trust alone in your house. But what if that person is known to you as someone you thought you could trust and has been your friend for a long time? How many people in this game have been burned hard this way?

I know quite a few.