Play the clarinet and you’ll be hitting Gs without even trying.

I don’t even care about the privacy aspect per se. Phone number as user ID is a crappy UX that fundamentally does not work when international travel, multiple devices, or needing to get a number changed. It also doesn’t work for shared accounts or people who might want multiple identities.

Some of these relate to privacy, secondarily, but my primary concern is the UX.

There is no expectation of privacy in public.

By which I mean that things like blurring a house from Street View are unreasonable.

Sometimes slightly worse. Like LibreOffice.

Sometimes actually better, like VLC.

Sometimes about the same, like the latest version of MuseScore (older versions were, in fact, quite a bit worse).

But sometimes, like with older versions of GIMP (I’ll admit, I’ve not tried its latest major version release candidate) it’s significantly worse.