> You can't sell guns and drugs online.

Don't care about that sphere of activity, never going to do any of theses.

> If you're taking money, you have to make sure you know your customer (KYC).

Can you be more precise? What are the laws about that and should'nt it be Paypal job to support that? Never wanted to compete with Paypal either..

Data is literally everywhere... that means GDPR apply to almost everything. Which is why you may see some people complains about being able to sell guns online but you will see much more people complains about GDPR.