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The server you submitted your comment to uses this 'OS nobody has used for decades'. The OS you wrote this from, also uses this implementation detail.

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It most definitely does NOT use that OS. That is a ridiculous claim.

Every OS, Windows as well, uses the concept of search paths, namespaces, and environmental variables.

I think he's speaking about First Edition UNIX, and, yes, we don't use that operating system.

We just use operating systems which implement concepts derived from there.

So, technically correct, though the argument has little merit.

The point is, "/usr/local/bin" is an artifact that made sense on that system, and that system alone, but we started using it elsewhere, and not it is so firmly established we do not dare to change it, even though it is a completely arbitrary choice with no relevance to modern systems.

well, yeah. Every path and name ever in all of history is arbitrary. As is the seperator between the components.

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