My whole point is and has been that the buyer should be trusted as much as the seller.
I don't specifically say that the seller should ship first but on the same token why can't the seller ship after the buyer has said that payment has been sent? [ This of course does not apply to Paypal]

The same argument also applies to feedback, Yes I have received different input from various sources but I still maintain that once you have received my payment, I deserve feedback. I have completed my phase of the transaction.
I hate sellers who hold feedback hostage to see what you will post first.

In addition, I think you will also agree that the whole feedback thing is a bit of a sham. People are so concerned about protecting their perfect feedback that they would probably post positive feedback even though the other party doesn't deserve it.