bạn can earn a medal hoặc badge bởi contributing links, images, videos, các bài viết etc. But bạn can also earn them bởi rating things and starting active diễn đàn topics and/or picks.
It's all about adding quality content..using proper những từ khóa and not just adding things for the sake of adding things. Always help bởi rating everything bạn view as well. And being patient..mine took forever to come!