I'd love to loan ppl BTC if we had some sort of a site that acted as a middleman. Obviously most ppl on this thread (including me) cant be trusted yet since we're all newbies...
I intend on changing that soon tho =] [=
basically, loaning BTCs won't be feasable until someone comes up with a way to force repayment. Since everything is pretty much anonymous, there is no way to insure collection. How do you break a guy's legs when you don't know where in the world he is?
What you're describing isn't a new problem. Marketplaces have solved it m by having a means for buyers to rate sellers (and vice versa) as well as having an escrow system. A good example is PayPal.