I don't really have the patience for armchair psychologists arguing about the meaning of colors in syntax highlighting anymore. Red/green for deletion/insertio

I don't really have the patience for armchair psychologists arguing about the meaning of colors in syntax highlighting anymore. Red/green for deletion/insertion is less or more standard across tooling. It's not a quirk of GitHub and if you're going to make an argument about it shaping our value judgements about code contributions I'd like to see an actual paper or study please. As others have pointed out, comments can have a lot of different reasons to exist. Inline documentation can be useful for tooling but should fade in the background when looking at the code directly. Commented out code generally should just be deleted but there are some rare circumstances where you might want to leave it. Since we're already deeply in "unfounded personal opinions presented as fact" territory, I really prefer when important comments are explicitly marked using a standard keyword like "NOTE", "WARNING", "FIXME" or "TODO" because editors can be configured to highlight these lines differently, completely avoiding this flaming mess of an argument.