Genuine question time: assuming that someone has created the "framework/library that everyone needs"[1], at what price points should that person be setting their sponsorship tiers, along the lines that you suggest, on GHSponsors? Perhaps something like:
- Thanks/gratitude: $5
- Prioritise issues raised by sponsors: $25
- Sponsor influence/vote on project roadmap: $300
- 1hr/month video-call/consult with sponsor's company/team[2]: $600
- Add sponsor's logo on the project's home page[2] (say for 1 year) - in a fun and engaging way, of course: $1000
[1] - I've done this, except for the bit where I convince everyone that they really, really need to use the library.
[2] - I've not yet seen a way on GHSponsors to limit the number of people who can sponsor a given tier. Which puts me off offering this sort of tier as over-subscription could quickly steal all my time and ruin my project's home page.