I strongly urge anybody to avoid selling BTC for PayPal. You can safely assume that ALL PayPal transactions will be disputed some time after you send the Bitcoins. However, if the buyer is willing to use escrow, I'm can hold Bitcoins for 180 days until the ability to charge back expires.
In as much as you do not accept paypal and even myself and my company we stopped because of the problems you cannot because of that try to discourage people. this is because many do not love some mediums of payment and has not the mind to chargeback on anything once their business goes well. This is because to chargeback you have to also be there answering paypal questions and giving reasons etc.
Paypal is good for those who use it and value it,its still a top payment processor. to those who don't its also good for them.