That way people will be able to see fresher/different content.
Suggested sorting abilities:
Must see: Sorted by # visited. These are the easiest and most accessible spots.
Hard to get : Sorted by # want to go, but lowest # visited first. This should give travellers a really unique list of places that seem popular but are never visited. (So this should give priority to 0,100 over 1000,2000)
Hidden Wonders: perhaps something that sorts the least visited/want to visit posts based on date. So stuff that never caught on and got buried for 6 months would win from something that just got published.
This suggestion is quoted from a forum post from @CoolCrab .