None of our jobs are released as hidden jobs, rather, the hide feature of our app exists to help agents categorize jobs and remove jobs from the primary job list page and the map search.
You can "hide" a job from your main search screen and map (and adding them to the hidden jobs folder) by swiping right over a job (or category) in the "Find Jobs" tab of your app. This will take the job out of your "Find Jobs" tab and put it in your "Hidden Jobs" folder.
This feature can help agents hide jobs that they don't want to see in their "Find Jobs" tab. Keep in mind that hiding jobs in your app will not hide them from other agents, who can still reserve them.