Fortifying the process against feature bloat

This was talked about in another thread and my feel is it was thought to be a good idea in general (adding a section for „close to stabilization“ features). This is the RFC I'm trying to write, but I have to find some time to actually do it ‒ probably over the weekend. And I plan to propose something as lightweight as possible (I guess the „changing the process regarding stabilization“ sounds much bigger than what I have actually in mind).

For me, it wasn't outright eye-opening, just pieces to the puzzle, but I'll go through it and find what exactly it was, also over the weekend.