First off: I appreciate the owner of setgetgo responding to people in this thread!
Second, I wanted to say my initial reference to receiving BTC payments anonymously via setgetgo was, in retrospect, not the best use of verbiage (on my part).. What I was trying to convey is merchants who decide to keep their BTC become targets due to how easily it is to check how much is in their wallet. Want to know how much money wikileaks has? You could simply go through the motions of a transaction, get their wallet id, and proceed to do the legwork to see how much is in said wallet. Or how about that entity that has a BTC address posted for donations? Again, same problem. With setgetgo, no one knows the wallet they are sending the money to, so there is a higher degree of obfuscation. Yes, you can do something similar with Trezor but only on a single use basis which wont scale with the scenarios I outlined above.
So sorry to the setgetgo creator for the inadvertent misunderstandings on my part.