[ColinWright]

Surely "purchase of you" should be "purchase for you".

And it's in interesting idea, certainly, but I'm deeply reluctant to give poeple my email address, let alone enter into an agreement with them to transfer money, bitcoins or physical goods.

You might have trouble getting over that.

Clickable: http://lickbit.com/

[contactdick]

And yes, building up trust is a very difficult problem which may prove un-solveable.

[contactdick]

Thanks good point.