Nothing new. If you buy non physical goods, or a service on PayPal you have no protection at all, and rightly so.
As a software vendor selling legit software, I have WAY too many *******s trying to do a chargeback claiming they didn't receive the 'goods'. Only after I reply to the dispute with proof of purchase and delivery of the DIGITAL GOODS do I then manually set the dispute to be sent to PayPal for resolution. They then rule that a refund cant be provided.
Some really big *******s then go and do a chargeback via their bank, forcing PayPal to take the money back from you.
If you use PayPal to buy digital goods, don't expect a refund - ever. It's completely at the sellers discretion. In other words, make sure you know exactly what you are buying. Don't turn around to the vendor after buying and say "Oh I assumed it would include XYZ. I want a refund" as the answer 99% of the time will be "Take a walk".