Just stay away from those scammers.
+1 for this part of your statement
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
additionally I would say anyone trying to sell bitcoin at this point needs to just have the buyer send the money as a personal gift, then it is both irreversible, AND you just cut paypal out of getting a portion of your money XD
I do this for anyone wanting to put downpayments on goods I make and sell, and it works wonderfully, the last big payment they make I let them pay normally if they choose but if they are willing to pay the same way on the last payment I just cut them a deal on shipping to give them back the fees paypal would have taken, now mind you if you do a LOT of business this way, paypal will catch on and probably screw you, but if you are not using them often for now, this way you should be good.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
also you can sell a paper cold storage wallet and mail it too them first class with tracking if you want and just use paypal to make the shipping label cause a tracking number for something sent to someone is what they are looking for mostly when trying to figure out if someone is scamming someone else, so no shipment after a period of time, they get anxious and proactively react, before the buyer can complain.