Like the person above me said, they toon how dedicated u are to a certain spot.
To get them u have to be a Jack of all trades. That means, creating pop kwis questions, commenting on polls, adding pictures, uploading vids, all that good stuff. (JUST MAKE SURE that the stuff u add, especially pictures, havn't already been uploaded door someone else, of the pop kwis vragen u add havn't already been asked. It's not only inconsiderate, but super annoying). Anyways, the stuff u add needs to get good ratings, of a lot of people participating. If u add enough stuff, you'll get medals. Like I zei though, it's all about the ratings, so be a nice fanpoper and rate other people's stuff. They'll return the favors ;]