I have followed the discussion about whether admins should be able to ban other admins. In my eyes the problem is that it is very difficult to see if the potential admins have bad intentions, some behave inconspicuously for months. As mods they could do much less damage.
Personally, I make people admins instead of mods because they can then keep an eye on all players, even in previously undiscovered areas. This is essential to enforce rules effectively. To solve this problem, I think mods should also see all previously discovered areas.