Does anyone know what a user has to do to get a dedicated fan/hard-core fan/fanatic medal?

Well that's easy just post 图片 a few at first and they all have to have 2-4 粉丝 then add 更多 and they get 2-4fans too 你 get die hard like me and basically just keep adding stuff

Add 视频 and 图片 a lot and find peoples to 粉丝 them.

Well u just have to work on the club on which u want to get the dedicated just add 图片 , 视频 , write 文章 add 答案 , add 民意调查 , add 测验 as many as u can its a little hard try this for 1-2 weeks & u'll get ur Medal

I hope I have helped :)

All 你 have to do is basically just contribute a LOT to the club 你 want a medal in. :)