This should be much more wide-spread. The hardest part of programming is reading someone else’s code.
More people should learn to do git rebase -i, it’s a simple way to re-organise your commits to make sure that they tell a story to someone going through the PR commit by commit. It only takes a minute and can save your colleagues so much time and increase the quality of the review process.
I agree that some public discussion place for patches is an absolute necessity.
No idea what that would look like for the blogger though, maybe Lemmy isn’t even that bad? You don’t even need a Lemmy account to interact, he could use Mastodon to respond.
But yeah the overall vibe of the blog is very much luddite and boomer.