Having found the user search on Moodle very cumbersome I decided it was time to create an AJAX driven user search. Every time I used the old search and entered a filter I was prompted to remove it before performing a new search.
By using my new AJAX search, results are displayed as I type, this allows me to find users much faster. I have added links next to the results so I can quickly go to the user profile pages, messages or Moodle detective.