While it make some (only partial!) sense, it seems there is a straw man fallacy (it's not exactly my original statement) and probably a bunch of data and researches defeating even this new point.
I can remember at least this one: https://www.theverge.com/2021/4/30/22410164/linux-kernel-university-of-minnesota-banned-open-source
If you remember other good arguments, researches or just data, please share.
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@abcdw the point of #FreeSoftware (just like many things in life) is not that the user by themselves, as a single human should understand everything.
The fact that it is possible to audit the code means you can ask someone to check things for you, or you can rely on a community of many interested people to check.
Also, when someone says "I can do for you what you want, but I won't tell you how", it is always a bit suspicious.