"You are"? It's just a browser "identification". It's widely known to be approximate, random and unreliable. It's common to try different agents because the web is full of bad pages which try to use it for something inappropriate. That's why user agent switching is a feature in all these browsers in the first place. It's like disabling CSS.

Is it fraud to use a battery charger or electrical plug with an adapter? After all, the particular plug is a way of "identification", even when easily circumvented. How about using aftermarket parts for your car or camera. They are implying by their similarly spaced and shaped connections that they are genuine parts after all... What about console cartridge identification chips?

These are somewhat interesting questions, if the HN crowd could have other opinions between "fraud" and "not fraud".

If that was enough for fraud, our whole society would have to be jailed.