Re: Wow. It's 2018 and "terminals" can still be hosed by sending files of control characters.
> Its not really. utf8 code maps to font character data, character gets drawn. I don't see the problem
Possibly you don't see the problem because of unfamiliarity with how font rendering actually works. Think of a string of characters (code points) to be rendered as a program with such things as control flow and subroutines.