[capitainenemo]

This doesn't feel particularly new either? Isn't it pretty much a new variant of https://github.com/reinderien/mimic ?

Which, if one is suspicious of code, can be defeated in vim with: set encoding=latin1

[Piskvorrr]

Which breaks other things, such as every other string that's not written in English. But it's a great tip for a quick check, thanks! (Much more convenient than piping text through xxd)

[capitainenemo]

Yeah, it's definitely just for quick checks if the text is in fact using unicode. But, hopefully just for stuff you're suspicious of where you could mandate no-unicode.