This is strictly untrue for many climates. Where I live in Canada, 0F is average winter day, 100F is record-breaking “I might actually die” levels of heat.

-30C to 30C is not any more complicated or less intuitive than -22F to 86F

A degree Celsius is not coarse and does not require decimals in weather reports, and I suspect only a person who has never lived in a Celsius-using country could make such silly claims.

It’s a (small, shitty) subset of markdown. Slack formatting just kind of sucks.