Comment by graemep

I have no idea how much of this stuff is volunteer written, and how much is paid work that is open-sourced.

No one if forced to use these licences. Even some FOSS licences such as AGPL will not be used by many companies (even the GPL where its software that is distributed to users). You could use a FOSS license and add an exemption for non-commercial use, or use a non-FOSS license that is free for non-commercial use or small businesses.

On the other hand a lot of people choose permissive licenses. I assume they are happy to do so.