I have actually posted a similar question in the internet section but later realized this could be a better section where all the Paypal sifus are located.

Recently someone from US wanted to buy something from me. The problem is that I know him from a forum and he's very very new - just registered recently and he doesn't have any references.

I plan to send via registered airmail, but he wanted to pay with paypal. My concern is that if he's a scammer, what if he reverse paypal payment once I've sent out the items? What if I withdraw all the funds from paypal before sending the items out so that there is no fund in my paypal account. If he try to initiate a reverse claim then, with no fund in my paypal account, can paypal still charge to my credit card since the account is linked to the credit card?

Thanks.