Commit messages and calling people out for breaking commit message history works to an extent. If you can keep someone from breaking commit history badly enough.
I still maintain we're awaiting another generation of version control where commentary on code is cumulative, instead of just set at the time of commit.
Yeah, it's hard to retrospectively unbreak commit history on legacy projects. Git notes[1] might be a possible solution, but I've not had that be particularly useful in practice (due to lack of support in various other systems).
I still maintain we're awaiting another generation of version control where commentary on code is cumulative, instead of just set at the time of commit.