That doesn't solve public goods funding dilemmas, that only works if you do the non-free/libre/open license option and you're making some upstream thing for use

That doesn't solve public goods funding dilemmas, that only works if you do the non-free/libre/open license option and you're making some upstream thing for use in proprietary products. Copyleft is only a business model if you tie it to non-FLO products, which defeats the point.