why don't you set up a competitor to localbitcoins? i don't know anything about them but they seem to be one of a kind. i would think there'd be room in the market.
Yeah, similar network idea, but via PayPal, not cash... As a web-developer and entrepreneur, that's something I could be interested in being involved with. Fully vet the individual exchangers, and maybe set up an insurance system whereby they pay you a small fee in exchange for insurance as well as the exposure through your network. No idea how to price that; would obviously require an understanding of fraud rates and so forth to price properly...
But I really like the idea of a network of *verified* exchangers using PayPal. As noted, they'd need to be vetted *well*, and would have to agree to the business model you set forth (which minimizes fraud-risk via various checks, etc). If it can be structured in such that they get some insurance out of it, and you get the stability of premiums (and can use the float to offset some currency risk), it could be pretty nice.
What about skipping Paypal and just using a credit card processor?
Cant skip paypal I sell btc on ebay for pp. I dont want to stop because I get good margins although much higher risk to sell though ebay, I do also take a debit and credit through google checkout for my verified customers. They have to upload a copy of their drivers licence and fill out a form saying they wont charge back and then sign it with docusign. It is a little more work for me to take debit card. I also heard they where going to start charging higher prices for cc fees.
It would be nice if somebody could create an exchange where people can get money in through a credit card processor, using models similar to those discussed here to minimize the risk of chargeback. Somebody was floating the idea of doing this with paypal, but I think the idea is even better if paypal can be skipped altogether.