It does contain telemetry, as you say. But with a throwaway account on the device, and no payment method or other details on it, I don't really care. Plus unless I'm doing an update check (about once a year) it's always offline. I recognise it's probably still gathered info and is sending it in a bulk catch-up, but again I don't really care.

For the registration requirement you're right, but as I'm not replacing their software then by the simple expedient of a dummy account I don't need to do anything to the device, even the DB entry, and personally I'd rather not bother. Nice to know, though, thanks.