Heh.

“Cyrillic” isn't the same everywhere. Bulgarian fonts differ from Russian fonts, some letters are “latinized”, some borrow from handwritten forms:

https://bg.wikipedia.org/wiki/Българска_кирилица

Colored example has the third alternative for Serbian cursive.

So without some external lang metadata we don't even know how your message should look.

However, Russian “Кк” traditionally is different from Latin “Kk” in most recognized families. In the '90s, font designers regularly thrashed ad-hoc font localization attempts which ignored the legacy of pre-digital era, and blindly copied the Latin capital into capital and minuscule forms.

Those look different, so I have no issue with them being different code points.

But they don't "fundamentally" look different, it's font dependent(there are fonts where they look the same), just like the same Latin k will look different depending on a font, so you need a better rule to make your own simple Unicode

He's probably the guy who decided to add fraktur/double-strike/sans-serif/small-caps/bold/script/etc variants of Latin letters to the Unicode because, you know, they look different! so they should get their own special code points.

It was a joke, by the way.

What about Cyrillic T: Т? It looks the same uppercase (but not lowercase. And in italic/cursive, which I believe is not encoded in Unicode, it looks sort of like an m).

The capitalized "K" and "К" look exactly the same though.

When I look at your post, in "K", the lower diagonal line branches off of the upper diagonal line, slightly breaking horizonal symmetry, but "К" is horizontally symmetrical.

The latter glyph has a little bend on the top diagonal part

Not in my font!