[bornfreddy]

It would kind of make sense though? When part of the product you are selling is made and supported by someone else, don't they deserve a part of your income?

I know that FOSS works differently, but that's also the reason why a lot of open source software is of questionable quality. When the development becomes a burden (is not fun anymore) and nobody is compensated, why would someone waste their time on it? Good will only goes that far.

Not suggesting that proprietary software is without faults, but maybe such licenses are a good comprise?