Properties/Metadata etc - What is good for?

Mon at 12:08 AM
Edited Tue at 7:42 PM
Trying to get a perspective view:
What are the various uses that people make with Properties/Metadata etc? How many uses there are? Can you try to list them?
I know about 2 uses:
  1. Give info about the file.
  2. Make the file more searchable, easier to find it.
Are there more uses?
Thu at 8:28 AM
Another possibility is building richer structures on top of the metadata. I’ve experimented myself with building virtual folders based on the tags attached to files i.e. if the tag USA is attached to a file, then a folder called USA appears containing that file. Multiple tags can be interpreted as folder hierarchies.