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Aside from security, I think what this indicates (and maybe this is fundamental to computers?) is that Unix doesn't understand that sometimes users will lie. Some of the time when I say `rm -rf` (or run a process which contains that command somewhere) I want to delete the indicated directory, but some of the time I actually don't. I'm lying.

Unix knows who I am, and it knows what I want to do, but it has no way of knowing how much.

The way we get around this is by inventing an imaginary person called "root" who always actually wants what they say they want. On the other end, the imaginary person "nobody" almost never actually wants to do anything. This is obviously a half-solution, and it shouldn't be surprising that it causes weird workflow problems.




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