Safety is the biggest concern when making payments to unknown peers via P2P. To make sure no fraud happens within the system, WazirX confirms the payment receipt. As a seller, you have to confirm the payment receipt. As a buyer, you need to make payment to the seller, and upload the screenshot, and only then the USDT get transferred to your account. Not to forget, WazirX has a KYC process to confirm the identity of every person.