Why to simply save my files?

A game probably was written to handle only one user, and then was ported to Steam that supports multiple users.

So what do they do? simple.

Let's copy the save files from Steam to a newly created temp directory, rename them in the process (to remove the profile marker) and use the original function to load it. simple!

Of course, when saving, the reverse process is done.

Should I mention that every time it opens a new directory? and that it fails to delete them afterwards?