I would guess that the substantial majority of repositories on github have had zero effort put into making them look presentable. The thing is that you don't no

I would guess that the substantial majority of repositories on github have had zero effort put into making them look presentable. The thing is that you don't normally see any of them because you don't spend your time on github looking for half-finished experiments that no one uses. Open a prolific user's profile and scroll down to the bottom of their repository list and you'll often see a bunch of completely unpolished things, though.