> Those that develop on top of open-source have no obligation to give you their work for free.
This is a pretty narrow view of open source.
Just as a simple example, GPLv3 and AGPLv3 are both considered Open Source and, depending on how you hold them, may obligate releasing work to customers essentially for free.
I remember so well when "Open Source" branding started with Bruce Perens - all the business arguments. When you need a database, someone ELSE'S business decisions (how THEY are going to make money) never end up helping YOU. If you use proprietary extensions and become dependent on them, you inevitably will get BURNED when their business needs diverge from your needs. - They close shop - They refuse to interop with something you need - They demand that you obey their arcane rules - They rug-pull - They get hacked as only they can - They lie to you - They stab you in the back
> When one develops using open-source software they have an obligation to follow the licenses.
Obviously what follows from one of those licenses is what you say.
I’m glad we agree!