Why don't you explain exactly how escrowing for yourself is a scam? Is someone loosing money because of this? Is someone running away with someone else's money?
ooh, ooh, pick me. I know this one.
It's that when you pay an escrow, you're paying for a neutral, third party. When it turns out that the "escrow" was secretly the same person as the one you wanted a third party to protect you from, you just paid for a service you didn't receive!
Note: I cheated on this answer and looked upthread.