Yes, under very situational conditions, escrowing for oneself is ok (though this is really just a deal where the counterparty sends first), and I believe that QS would qualify for those conditions.
no
- QS took escow fee (even though he is now willing to send it back)
- in case of QS other party did NEVER know it was dealing with the same person
it is essentially lying. look up the word escrow in any dictionary and it states THIRD PARTY.