As TC mentioned, escrowing for yourself is really not a scam.
Well I will have to disagree with TC.
If you escrow, you charge a fee for insurance.
If you escrow yourself, you still charge the fee, but you
don't provide any extra insurance at all.
That is the scam.
The fee is not insurance, the fee is for your time (ect.).
However the insurance is provided because if I were to hypothetically escrow for my own trade, and lose the money I was holding then I would still need to cover the losses from my own personal funds