As to my first comment, I just thought it was strange for all new quizzes to say "Updated". I think it's a great idea for users to be able to see the last time a quiz was updated. Not just in sports and the like where things change constantly but it could possibly also help provoke more "reports" on some of the more obscure published quizzes where an update is required.
I do think though that the "featured date" is a valuable piece of information that shouldn't require too much digging to find. Having to go to the users page to get that info is a little inconvenient. Since, I would assume, that admin doesn't want the pages to be too cluttered or congested and I know I wouldn't like to see something like the "created date" sacrificed for the "featured date" if it were possible to implement LabinotHarbuzi's suggestion above about the hovering that could be ideal.
The updated date would be that which is displayed therefore allowing people to immediately see if a quiz is out of date without taking any further action and for those curious about the original publication date, it's conveniently there if you want it without leaving the page.