With all content wewe can see which user added it. If that person has a medal in that spot, a green/yellow/red dot will appear before the users name. That way wewe can see who has a medal in that spot. However there is no orodha au anything to see who has a medal. But usually it's pretty clear who has a medal in a certain spot, because they're very active.
On a spot, there is a little bar down the bottom with a few mashabiki on it. On the spots that I have contributed heaps on I'm always in that bar and so are the other mashabiki who've done the same thing... But they're re-ordered a little each time... I was wondering if that has anything to do with medals.