Hmm .. the author uses a hotspot connected with a SIM. Their whole argument hinges on not being tracked, but their hotspot is with them all the time. Seems like a massive hole in their privacy argument.
Not always. Where I am, for example, it's law to KYC users of wi-fi hotspots, usually by phone number. Good news: there are a lot of places that don't bother and just have the wi-fi behind a password. Bad news: whether you find such a hotspot is very inconsistent, even within the same chain. So I don't bother and just always use my phone as a modem.
Also, apparently bypassing authentication may be as simple as stealing the MAC address of someone who has already KYCd, but that sounds like it would be even less consistent.
For not much more than I pay for my (definitely throttled) mobile service, it'd seem like a fair trade between the two. With certain considerations given to service availability and local network speed.
There is even a pixel phone given to members of certain memberships.
Something I wanted to make easily available to anyone passing through here.