ulterno

I didn't get that.

Checked the man and it's not deprecated. So what does it have to do with "old"?

Witch !!!

If she were a tech lead, she would be reading the git logs !?!!
*shuddering and shrieking*

How evil of her to expect people to use their brain at work?

They need to keep their brain unused for when they smoke their state sponsored tobacco, which has all the right to use that brain.

I would have a problem if a terminal app were to do something like this, but for GUI apps, it is expected for them to make stuff easier.
And I feel like, if you were to use a slash in a file name, it would most probably be either an "or" slash or a fraction slash, so the substitution is fine in my books.

illegal characters

Not sure about calling it that, considering it is a standard UTF-8 character. (0x2044 in UTF-16)

Your machine translation is working well.

Now just if we had all famous people saying stuff like this.
But they won't. Guess why? Because the "won't" is what made them famous (and rich),

Lay people give more heed to those acting from the start, like they have the answers. That's what "charisma" is about.
Also one of the reasons why religion gets easier wins. Because when people hear something that makes them have to think more, they ignore it more.

What law is being broken here?

The law of "don't take money from the rich and powerful; only they take ~~their~~ your money".

Since you are using electronics as a facilitator, could it be e-quip ?

Well, considering that I am with coworkers who don't remember when to and not to put the '/' at the start of the file path (despite me explaining it to them multiple times), "slash e t c" is probably the better way.

Yeah, but we don't know if we can do the case sensitive thingy on that, or do we?

Just tried. It processes the escape first and then finds the path with it. Essentially, making it look into a directory made by the characters before the \/.

The above was when I tried:

echo "asd" > asd\/dsa

But then I tried using Dolphin (GUI File Browser) to make a file and:

❯ ls
 1   2   3   4  'asd\⁄sad.txt'
❯ ls
1  2  3  4  asd⁄sad.txt

In the first one, the backslash is not the escape character, but part of the text.

Turns out Dolphin just replaces the forward slash with U+2044 "Fraction Slash" character, hence, not requiring any escape. I'd call that cheating, but it works well.