Tags for an extension in AMO store

I would like to know about the “Tags” option present in AMO store.

  1. How it works?
  2. Steps to add Tags for an extension?
  3. How it enables listing the extension in search results?
  4. How does it benefits an extension?

Thanks in advance

Tags are a legacy feature that isn’t currently exposed on the site. You can add tags to your add-on, but at the moment they have no effect.

Thank you for the response