I always ignored Master Medals thinking it was very tough to obtain but yeah I will definitely try collecting medals from now onwards.
It indeed is tough but not impossible !
In my eyes the master medals, are too hard to win, especially if you are a small roller. The only medal who is really and easily within reach is the "Old Timer" (be member for at least 1 year). However, the rewards are pretty nice, if you achieve 10 medals, you receive 10 000 DOGE + 1 ETH!