If they're relevant to the code change ("Not sure what I did, but the tests are passing now ¯\_(ツ)_/¯", "Removing production usernames and passwords from front-end config files, MIKE ಠ_ಠ"), it's fine.
If I see a commit that's just "¯\_(ツ)_/¯", I will force-push over it, don't you even think about it.
If I see a commit that's just "¯\_(ツ)_/¯", I will force-push over it, don't you even think about it.