Linux is the very definition of a hacker-friendly OS! People who go spelunking into the guts of a machine and uncover all the niftiness for the rest of us... Love 'em!
A company has to pay their programmers; these people (I'm assuming) are doing it for the sheer coolness (and props) of it! Stay up late nights and get into that caffeine-wired productivity zone all on their own. That's why most copy protection tends to be broken sooner or later: it's a simple question of the number of work-hours put into a project. Either concentrated inside a company's programmer pool, or spread out over the worldwide enthusiasts of a project, which one wins?. If a project starts to capture the imagination, there's no way for the original company to keep up with the cumulative innovation of a zillion over-caffinated enthusiasts!