you first quoted 80% and chided me for not reading the article linked to because it supposedly implied/had it in there. now you're moving the goalposts and point at a different article that i can't have guessed before you posted it.
> Maybe that's not the case in Hungary, but that is the case in America (and Australia where I am).
it's not necessarily the case there either. i had worked in both countries and always negotiated contracts that wouldn't have such overreaching clauses.
> I mean, Linux kernel development worked in this way for the first several years when it started.
exactly and you can see how much (or little, in this case) that achieved vs. what money did when it started to pour in. it's not at all hypothetical that if currently paid developers were stopped getting paid then the current pace of development would stop to a crawl (related example: look at gcc vs. clang/llvm after google/etc moved their developers from one to the other). easy test: would you continue to work on linux with the same pace/effort if your company stopped paying you for it? yes/no? if you answer yes then i also expect you to pay them back any past salaries you cheated out of them ;).
> Both Linux and grsecurity were developed for some time without direct income sources from most contributors.
in our case, it's not 'some time' but 'all the time'. that's the big difference which puts the original statement into a very different light:
> Meanwhile the kernel upon which their work is built has been provided for free for much longer
that 'for free' isn't at all free (money makes it happen) unlike our volunteer project (money doesn't make it happen).