I assume that escrow was used for this transaction. Can whoever acted as escrow post their opinion as to if they think the ownership actually changed hands? If a very new and/or unknown account purchased the account then the ownership probably did not actually transfer but rather KoS sold the account to himself.
We will never have the proofs that Kingofsports has sold his account really , there is no way to prove that.
Sure there is. Were you the escrow? If someone reputable bought the account then it would be possible to confirm the ownership actually changed hands.