Worst case scenario is that the Paysafecard code can be traced back to the specfic store where it was purchased and that they have security cameras that still has the footage archived. I have no idea to what extend they know where a specific Paysafecard code was sold from: If they know it at all, if they know which country, if they know which city, if they know which store it was bought from. However, it is far superior to using a credit card in terms of privacy for those who do not have the technical expertise to transact with Bitcoin. As someone who tried Bitcoin and concluded that it was too complicated for me - and gave up because I didn't know what the hell I was doing and didn't want to lose money - I can tell you that far from everyone can handle Bitcoin, but they should still have the opportunity to protect their privacy with as little trace as possible left behind. If a technically inexperienced user wants to purchase a VPN subscription and the payment options that he/she can handle are credit card and Paysafecard, I'd say Paysafecard is preferable and harder to trace.