I guess it depends on your use case. If you have a basic tool where most of the functionality lives in a single file and which you need to compare to previous v

I guess it depends on your use case. If you have a basic tool where most of the functionality lives in a single file and which you need to compare to previous versions frequently, I can see how just having incrementing file names could be useful. I would say that this is a bit of an exception though. Most projects are spread across many files and dependencies, so it would be a huge mess trying to manually version those by renaming files all the time. I also rarely want to compare several different versions of my code side by side, so I prefer having all of the old stuff 'hidden away' in git by default.