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.
Maybe he's trade with an alien, not a human 
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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? 
Not only that, he was willing to create an account in an unknown centralized exchange, he told about violating privacy concern is completely BS. People forget if there are many people out there have a lambo, wear a branded stuff, and don't mind to show how much their money in the banks. The fact is many people are have a nice outfit to show if they're rich, don't need to be paranoid, just wear a cheap clothes and don't trade too big.Forum Username: tjtonmoy
Forum Profile Link: https://bitcointalk.org/index.php?action=profile;u=3318288
Telegram Username: @Ash_zero
Participated Campaigns: Twitter, Article
http://Exchange.bytedex.io Exchange ID: 642052
Forum Profile Link: https://bitcointalk.org/index.php?action=profile;u=3318288
Telegram Username: @Ash_zero
Participated Campaigns: Twitter, Article
http://Exchange.bytedex.io Exchange ID: 642052