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What do you think about linux? The whole point of doing FOSS is because its fun and hopefully useful. If someone things they are exploited they should just exit. At the end its also about the quality of core thinkers and the drivers behind that piece of software.
2/ On exploitation: I think it's problematic that because actual code is indeed probably the best way to evaluate job candidates, that what winds up happening is that there's almost a requirement in many job applications that you've contributed to open source.
