It does not exists in the world that developers work on such these big projects for free! ... It's a nonsense!
So stop asking them to release their money-productive source codes.
If you really want to 'open' this section to open source, go ahead and start working on your own project. Then let everyone edit it, simply add their names and release as new projects (or even sell it). Good luck.
So stop asking them to release their money-productive source codes.
If you really want to 'open' this section to open source, go ahead and start working on your own project. Then let everyone edit it, simply add their names and release as new projects (or even sell it). Good luck.