This ... this is humor, right? I'm not running afoul of Poe's Law? The vim license bit (and what looks like Sublime Text in a screenshot claiming to be vim) seem to be hints. Perhaps even the misuse of "medal" is one too. I want to think this, though.

Taking this seriously: I've used input redirection to write things in dire circumstances a few times, but beyond that, anything that changes that file would be a text editor by definition.