I don't just go to Paypal first necessarily. If it's easy and obvious I'll do it on the site then cancel in Paypal. But sadly most services don't make it easy so it's kinda on them if I go to PayPal first. Would be no different than if I used Privacy.com with a fake name. Good luck coming after me then.

Also fail to see how it's "abusive" since if you implement Paypal you should have your service setup to handle Paypal cancellations.