I've not done any proper research into it yet but it is possible to send a bitcoin as a physical item isn't it? i.e. You can send the wallet code or whatever on a piece of paper via registered mail. This would protect you against chargebacks as you would be covered by paypal seller protection. It would kind of negate the whole point of a digital currency though...
Not really. Some people have tried but ultimately Paypal prohibits selling digital currencies. End Stop.
So when the person disputes the items as "not as described" saying the code doesn't work, or no code was included or simply sends it back (after taking value off it) Paypal will side with them.
People seem to be missing the larger issue.
Paypal COULD change their policies to be Bitcoin friendly. Paypal has INTENTIONALLY chosen policies which make it prohibitively risky for sellers to use their network to sell digital currency. This isn't some accidental oversight this is 100% intentional move.
Trying to get around Paypal INTENTIONAL embargo is simply doomed to failure.