Ensuring free software does not depend, for its maintenance and continued development, on non-free, closed software, and on companies whose profits are based on

Ensuring free software does not depend, for its maintenance and continued development, on non-free, closed software, and on companies whose profits are based on the licensing of such software, is not "purity policing", it's part of the essence of the project. PS - Commerciality in itself is not the problem. Perhaps you should read about the GNU project's "philosophy" page to understand what it's about: https://www.gnu.org/philosophy/ https://www.gnu.org/philosophy/