Nobody pays for open source. We can force them to

Usage metering is sort of backwards. The largest and most successful corporate users have internal mirrors for performance, auditability, privacy, cooldowns, etc. They often have lower use than small users who do naive things like re-fetch all dependencies every CI run. Usage is at best uncorrelated with the business value delivered.

There are also significant tax and financial regulatory problems with the approach described. But I've also been thinking about a solution structured along these lines.