I always had the impression that the free software idea had a stronger presence in Europe (and, generally, non-Anglo areas) and have generally chalked that up to the fact that the ambiguity of free (as in freedom)/free (as in beer) largely does not exist outside of English. Note that “open” is every bit as ambiguous as “free” here - i’ve had way too many arguments with people who thought “open” just means you can look at the source code (imagine thinking that a store was “open” just because you can look through the window and see products).
However IMO the author goes a bit too far in presenting free software seemingly as some sort of uniquely European concept - he seems to suggest that the creation of Linux came about entirely out of thin air, and almost reads to me like Linus Torvalds originated the idea of copyleft - with no mention whatsoever of the American GNU project upon whose shoulders he stands. Allegedly he was inspired by a talk Richard Stallman gave at his university in 1990.
https://www.oreilly.com/openbook/freedom/ch09.html
Edit: Git also did not come out of thin air, Linux developers were using a proprietary (American) VCS in the beginning, under a gratis license specifically granted for Linux development. The Australian developer Andrew Tridgell is arguably the person most responsible for inciting the development of git, as the proprietary VCS developer withdrew the gratis licenses once he developed a free tool which could interoperate with the proprietary servers.
https://www.gnu.org/philosophy/mcvoy.html
(That proprietary tool is now licensed under the Apache 2.0 license, but as far as I know no one uses it anymore)



Anyone with an Android device is level 1 by default.
I guess being in this community puts me at least at level 3 by definition. I contributed a package to GNU Guix but I’m not quite a “maintainer” or even a regular contributor to it yet. Maybe I can claim level 5 just by virtue of having contributed to an “advanced” distro.
In “the real world” my mild-mannered alter ego would be level 4 because I use GNU/Linux at my day job.