>thread to call out Read the Docs for profiting from MkDocs without contributing back.

>They also point out that not opening up the source code goes against the principles of Open Source software development

I will never stop being amused when people have feelings like this and also choose licenses like BSD (this project). If you wanted a culture that discouraged those behaviors, why would you choose a license that explicitly allows them? Whether you can enforce it or not, the license is basically a type of CoC that states the type of community you want to have.