On the one hand, this comment is brilliant, because it's a concise piece of esoteric information. High signal-to-noise! And even though I won't remember the details, I suspect that next time I have a use for this information, I'll remember enough to google it.

On the other hand, if vi or emacs is the editor you want to use, you're almost certainly not the person who chooses their editor based on trying to figure out the least painful editor that'll work over SSH and will now be relieved to use micro (rather than one of those annoying options that's already there).

Though maybe that was the joke. In which case, ya got me. Zing!