And it brings no good things. This is entirely superfluous complexity. You could have all the benefits with far less complexity if you just put in the effort to build and design things.
But we don't. We've decided that it is impossible to do so. And many people have decided that knowing all of these obscurities makes them smart, and they will look down on anyone who doesn't.
> many people have decided that knowing all of these obscurities makes them smart, and they will look down on anyone who doesn't.
I don't think it's sysadmins who are pushing for this messy state of affairs, it's that various specific projects refuse to follow the POSIX conventions, presumably for reasons of backward compatibility/general resistance to change.
[0] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1...
[1] https://www.gnu.org/software/libc/manual/html_node/Argument-...
[2] https://www.gnu.org/prep/standards/html_node/Command_002dLin...