> *) improve security by making it possible to make it impossible to
>    have a usable device node anywhere else on the system

That's the first time I've seen anyone suggest *that*.

If devfs makes it impossible to have device nodes other than in /dev,
it's unacceptable.  As simple as that.  Device nodes elsewhere have too
many other good uses to give them up.  "Unix doesn't make it impossible
to do stupid things because that also makes it impossible to do clever
things."

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