You can just use > to indicate a quote. It doesn't add any formatting but everyone knows what it means on HN. Using 4 spaces turns it into a code block and mak

You can just use > to indicate a quote. It doesn't add any formatting but everyone knows what it means on HN. Using 4 spaces turns it into a code block and makes it much more difficult to read since paragraphs have no line breaks -- they end up running off the screen and require horizontal scrolling.