Everytime someone open a thread here to sell his account, you will see couple of people come after the OP to the thread and ask OP if he can sign a message for that ownership, but the truth is, these people don't even want to buy that account.
You can find this in every single account selling threads.
This is good for 2 major reasons, 1, To ensure the buyer isn't buying stolen goods and can at a later time be reversed 2, To make sure the seller is not involved in a stolen account. With the rise of stolen accounts, nobody wants to buy one and the next find out that it was hacked. I'm glad that some people take the time to answer these questions. If they didn't take the time out of their life to do this, then anarchy would reign and the forum would be a joke.