I mostly just message the person who wrote it if I have questions when I look at a commit and have questions.
I suppose if I painstakingly write 1000 beautiful commit messages I could save myself from having that one conversation when somebody else has a question about one of those commits.
Code comments are also far from good. They have the same issue as duplicatet code. Comment and code age indiviually. Now you have to maintain both and it's for them to diverge.
Git commits are a snapshot of the codebase. Commit messages in them are pinned to a code version. Comments in commit messages are therefore always tied to the right version of code.
I'm an introvert. I don't want anyone to message me (or worse, set up a meeting with me) just to understand what my commit does.
Furthermore writing is itself a way to enhance clarity of thinking. Very often during the process of writing out a commit message I realize something else in the commit is missing.
I suppose if I painstakingly write 1000 beautiful commit messages I could save myself from having that one conversation when somebody else has a question about one of those commits.