I wonder how the Tag Cloud plugin actually works?

As I understand, the Tag Cloud plugin works as follows:

- Let's say I have a tag word called "Apartments in Seattle".
- A user clicks the tag words "Apartments in Seattle".
- The Flynax software searches all listings with the words "Apartments in Seattle".
- The Flynax software displays all listings with "Apartment in Seattle" to the user.

However, I think there is no way for a user to add tag words to their listings?