If we voted on content, it would be a memetic popularity contest. Voting on tone also has issues[0], but it also keeps the quality of communication high enough

If we voted on content, it would be a memetic popularity contest. Voting on tone also has issues[0], but it also keeps the quality of communication high enough that people can (sometimes) completely disagree, but still learn from each other. [0]: https://en.wikipedia.org/wiki/Tone_policing https://en.wikipedia.org/wiki/Tone_policing