Well, no, because Git doesn't prevent you from modifying commits pointed to by tags. It prevents you from modifying the tags themselves, which point to the orig

Well, no, because Git doesn't prevent you from modifying commits pointed to by tags. It prevents you from modifying the tags themselves, which point to the original commits, but that's not relevant - if your workflow involves a lot of "git commit --amend" or 'git rebase -i", it isn't going to stop you from accidentally rebasing or reordering tagged commits. Also, I don't think I've ever seen a repo where every pushed commit is tagged, and I suspect that will make lots of git operations that look at all refs scale poorly. The use case is that if I make a branch off current master, and then I run "git commit --amend" thinking I've already run "git commit," it shouldn't let me modify that commit - whatever it might be.