What are you even talking about? Trading peer to peer is the very essence of decentralization and not involving centralized third parties in your trades.

And what do you think happens to your privacy when you sign up for a centralized exchange, hand over your real name, address, email address, phone number, complete KYC, upload scans of your passport and other documents, upload a photo of your face, let them track your every trade, every click, every page view, and then sell and share that data with a bunch of third parties?