Yeah, but a key element to Bitcoin is anonymity.
Is it? No one is preventing you from disclosing your identity.
everyone knows that. the issue for trade is that a bank account (or paypal, ...) IS identification.
I'm batman and 13GuHYTANS5H7Zerp9zcEjJpBaYzBwuP1k is my address, please pay and don't worry, in case something goes wrong just come to my cave and sue me.