Yeah I bet the people working with them really love the commit messages /s

Or more likely they are working alone.

I used to do that, until I had to go through my history to find a specific commit that I couldn't just diff for.

It's like good comments in software. Half the time, you're doing it for your future self.

Additionally, people often write long PR descriptions while keeping commit messages to 80 chars. But when you think about it, PR descriptions are more or less ephemeral, while commit messages are persisted forever. There should be an emphasis on the latter.

That's what my team and I do. We put effort into the PR, then squash it down. It works great.