What you are proposing is a form of a shared source license.
My thought is not to restrict anyone from doing anything. Rather that, for example, any profit-seeking entity can use any code, but that that profit-seeking entity must pay a standard and proportional fee to the license-holder of that code, generally its author(s) and/or maintainer(s).
Does that qualify as "restricting anyone from making use of the program in a specific field of endeavor"? Going by the wording, I would lean toward "no".
Furthermore, while on that page I glanced at the other paragraphs, and I couldn't help but notice that according to #9: "License Must Not Restrict Other Software" and its text: "The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.", the GNU/GPL don't qualify as "open source" software.
It is to laugh.
Well, so you are effectively restricting the field of endeavor. People who want to do business with the code licensed this way can no longer do so without having to pay while all others still can use the code freely. I don't think there's much room for interpretation as to whether this fulfills the term "discrimination".
What you can do instead is dual-license your code, offering more "favorable" terms in a second proprietary/commercial license to businesses. However, this usually comes with the caveat that licensees of the commercial license can now do proprietary changes without having to give them back to the community.
> the GNU/GPL don't qualify as "open source" software.
> It is to laugh.
What? I am afraid you are misinterpreting the text and/or confusing the terms of the General Public License. This says you should not place restrictions on the licenses of other software contained on the same medium. It doesn't say anything about derivative work. Why would this mean the GPL doesn't qualify as an open source license?
Here's a list of all OSI approved licenses: https://opensource.org/licenses/alphabetical
It’s true that I haven’t comprehensively studied the GPL.
Mostly I’ve observed companies using hundreds, thousands, or millions of hours (depending) of the very hard work of many very smart open source devs in building their own proprietary systems on top and making fucktons of money, none of which is ever seen by the people who made 90 or 95% of their business possible.
May I suggest you first read the license before jumping to the conclusion that the OSI is incompetent at reviewing licenses?
5. Conveying Modified Source Versions.
A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an “aggregate” if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.
