> If they want to charge me (or charge me more) for it, then they can do so at that time. No tracking needed except for that associated with payment.

That's what's proposed? An identifier sent along with the request to see the current list of updates available?

> I don't see how this doesn't increase personally identifying features. On the contrary, it's adding one: a unique identifier.

An identifier that changes every week or so. At that point it is useless for identifying an individual, but can still be used statistically to determine how many systems are running what versions of Fedora, even behind NAT gateways. The only difference from before is now instead of "there's one IP with more than average check-ins, or check-ins from two or more different configurations", it's "there's one IP with X number of unique identifiers that randomize weekly seen over the last 28 days, so we can approximate X/4 different systems behind that IP".