Sice i needed a Xiaomi account for the Mi Band and to download the english app for it, im visiting the english Xiaomi forum each day.
Its quite entertaining there but the overview is kinda chaotic.
Every time you post u get experience, if u do a poll u get some also.
With it you can download Forum attachments. There are also some Medals you can win or earn by parcipating in some posts.
Sometimes you can also win Mi credits, i think with them you can buy themes, ringtones and other stuff for your Xiaomi phone.
Its also a lot of activity. When i look on Meizus offical english forum its not very active.
Maybe you can also implent some of this things on this onoffical one.