Why does it matter whether he is the original or bought an account? The issue was giving false trust to himself.
It would certainly disprove the accusation that Raveldoni is no longer the original owner of the account.
Some people are able to provide the private keys when accounts are sold.
The real issue in my eyes is the fact that he was trying to act as an escrow service when doing so is not appropriate. There are many warnings out there that say to use escrow, but a newer user may not know who is and is not appropriate to use as escrow.
Why is it that you suggest people to use escrow, and when you give specific recommendations you choose people who have a very long history of trading (with many successful trades)? The answer is because those particular people have the lowest chance of scamming.
Using the same logic, someone who is somewhat "trusted" but has a less extensive trade history has a higher chance of scamming but the chance is still generally low. Going further down the spectrum, someone who has virtually no trade history and is trying (or offering, or accepting a request to) escrow will almost certainly scam.