Comment by p9idf

Why do you find that so repugnant that it moves you to write resentful comments about it? The entire point of researching and publishing computer operating systems is to discover and share new methods and ideas. I doubt that the Plan 9 authors published dozens of papers and gave countless lectures in order to discourage others in their field from building on their work. They didn't discuss their ftp filesystem multiple times in their publications in the hopes that nobody would ever implement anything like it ever again. That the Hurd authors profitably exchanged ideas with another operating systems group is beneficial to everyone and shouldn't fill you with spite.