There is going to be no way of getting it from Fiat to Monero without some sort of KYC. The entire Fiat banking system requires KYC. It just depends on who knows the information. In this case, it's another peer and what they know is a name and possibly an email. A regular centralized exchange is quite a bit more invasive and can and will shut down your account if they so desire to. Somebody is going to know something about you, no matter which way you go. If you bought it with a credit card, the credit card company has your name and identifiable information. So that's still KYC. I think about the only way to do it without any kind of KYC at all would be to do cash by mail.