Then prove it.
why?
Because the entire reason Bitcoin was created was to eliminate the need to trust a middleman with control of the money. Multisig transactions make it possible to do escrow without giving someone else control of the money and prevents collusion between the escrow agent and counterparty.
You can learn about it here:
https://en.bitcoin.it/wiki/MultisignatureYou don't have the standing to educate me on the "entire reason" bitcoin was created.
And I don't care about your opinions or thoughts on these matters, if you aren't willing to use one of our trusted escrows or establish a trust ranking through purchases then you should take your business elsewhere.