Open Source is not neccesarily about other peoples patches. I am doing fine without other peoples patches, it is the kind of project that does well without patches. I am doing all the development, and it is world class. (Audio DSP plugins http://sourceforge.net/projects/pxu/files/ )
A big plus here is ofcourse the possiblity to compile on any architecture with a supported compiler.
If anyone should have any patches, I won`t reject them ofcourse, as long as they are good. Or they can maintain their own patched versions. But I don`t think most people can jump in there and improved DSP that has iterated for 10 years.
Noone came up with this at concentrated audio-developer meetpoints as KvR. They indeed copied some of my earlier versions in their designs instead. So you know open-source may not be neccesarily about patches, but about architectures and really freeing an algorithm, to the open-source world, making it free of corporations and bankrupcies, never needing to go through the development and testing-phases again.
Open-source is very good in that respect, acting as a library, of what eventually becomes very good algorithms for many things.