When many people share a bunch of files with me, my "My Files" view just becomes a long list of files without context. I propose that a new way of sorting be introduced, sorting by event or reason.

When you share files with people, you would specify the reason, say "Project A". When those people look at their "My Files" view sorted in the "Event/Reason" method, they would see all files related to "Project A" under a "Project A" heading. Subsequent file shares with the same reason, e.g. "Project A", would therefore end-up under the proper heading.

In this way, you would have more information about the context under which the files were shared with you rather than staring at a meaningless list of files.