But really you could have used any other character that wasn't going to appear in your strings, especially a visible one like “␟” U+241F "Symbol For Unit Separator".
i actually used [U+263A] and [U+263B] for this purpose, ignorantly (in good faith)...in pro/gov/civ projects....not realizing the canonized name wasn't "Smiley/Inverted Smiley" at the time, which may have been an oversight.
Ironically, I looked for that very control character, and I think it may not had worked with Excel/Clipboard, so was a no-go for biz ops.
I never understood how people were able to abbreviate the U S into ␟ without triggering the USA flag, like on youtube.
After reading historical/proposed Unicode RFC's, having scrolled past every glyph that could combine into graphene clusters and fuzzed unicode input on many systems....
today I am humbled to learn that ␟ is not nor US, but the exact unit by which its own proliferation would itself de-nomen-ize itself.
