Hey!
Yes, zz1 is such an old world, but it's not the time to close it yet... if there were less than 300 active players, a countdown would start indeed. Where did you take that 297? Because most of the time (as they can't do otherwise) every external tool flags a player as inactive if he doesn't score points, completely ignoring if he at least logged in, wrote PMs, forum posts or everything else that doesn't make him take points on rankings, that marks him for us as active.
In fact we currently have more than 300 players qualifying as active players, that's why no shutdown was triggered