Thomas Mader wrote: > I guess many of these contributors are volunteers but > are there also people who get somehow money for their work?
Yup. I use D almost exclusively in my professional work, and if something bugs me in the course of that, I fix it, and if applicable, submit the fix back upstream. Failing that, I put generally useful files on my server for public download. There's a variety of other little things that follow this same pattern: they are useful to my business, so I do them for personal profit, but they are useful to other people too so I make it public.