You should only lose medals if you lose a battle if you lose over 50% of your troops. This will stop players deliberately losing battles in order to keep their medals down.
Nothing wrong with keeping low medals! I rotate my medals between 1,000 and 2,000! Usually the higher medals you have the more advanced defense your going to face! If your looking for an allience come let us teach you at Dawg Pound through your allience gate!
Dropping medals and raiding is a vital part of the game. Join in if it's upsetting you. Try getting 8.5 mill food for troop UG in global with out doing this. It would take you a week instead of two hours.