Free software community participants, contributors, can feel discouraged with the diving the whole community in strictly 2 class of only Maintainers vs. Consumers and then demand something like an Open Source Contributors Fee. All those investigative and reporting work about software behavior issues, hard to reproduce issues, bugs only in specific environment or specific circumstances, sharing experience, helping each other and so on, let alone fixing some issues on their owns and posting PRs.
There aren't 2 classes of participants. The OSMF only talks about two but there are plenty of spaces for contributors to participate. And it's possible people will choose to participate less, but I haven't seen that happening yet. Contributors that like working on a project just work on a project. I've not seen any complaints about maintainers getting the paid because the contributors just drop in and drop out when they feel like it. They don't work on all the "chores" in the project to keep it running. If a contributor does do "chores" then they are probably more like a maintainer and probably should be part of the maintenance fee. But... this hasn't been a problem.
