How do people already have +12/+11 on suits?

Not really. Level 120's get 60 medals from the 4 quests you get from Wynn, and 12 from the party quest quest from Bass. Level 100's get like 40 from the Wynn quests, and 8 from Bass. Level 70's get 20 or so for Wynn quests, and like 4 from Bass.