Not all packages you can buy are closed source, the developer decides and most I bought have the source included
Yeah, I've heard the same thing from other people too, and that's fair. However, in the current project I am working on, out of 6 packages I've bought, 3 of them mostly consist of scripts (others are mostly shaders and vfx), and 2 of them have .dll files which prevent me from diving into the libraries' inner workings. I'd say that is still a pretty high ratio.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.