What if we did build a clean room as a service but the proceeds from that didn't go to the "Malus.sh" corporation, but to the owners / maintainers of the OSS being implemented. Maybe all OSS repos should switch to AGPL or some viral license with link to pay-me-to-implement.com. Companies that want to use that package go get their own custom implementation that is under a license strictly for that company and the OSS maintainer gets paid.
I wonder what the MVP for such a thing would look like.