Yes! Absolutely I am rewriting history. I don't care about my messy history, and nor should anyone else. I routinely force-push to my branches because, again, it's my mess. Tools like mailing lists obviously handle this fine because every revision of my patches is published there, so who cares. Tools like Gerrit handle this well because it stores patch sets regardless of branch state -- as they are unrelated -- which feels like the right model. Tools like Github just suck at this in general and fall apart when you start force-pushing PR branches, but whatever.

The problem with squashing at review time is that it is incompatible with my model. I'd rather teach engineers to not push shitty "fix the thing" or "oops" commits that are ultimately useless for me, the reviewer or reader. Just use git commit --fixup and git rebase --autosquash as $DEITY intended and force push away. It's your world, you'll be deleting the branch after you land it anyways.

The tool works so well when used as intended: a distributed version control system. The centralized model adds so much pain and suffering.