There is no precedent for placing caches. This means that the past listing of a similar cache in and of itself is not a valid justification for the listing of a new cache.
Other reviewers cited examples of geocachers who tried to unscrew caps from hydrants in their zeal to find a hidden cache. And it is, of course, illegal to tamper with fire hydrants, just as it is to tamper with U.S. Postal Service mail boxes.