with this you only share your Mii so other people can use it. there is not much use to that tbh. you can only register friends via Facebook, twitter or directly people in your vicinity

Yeah I figured that out. This app has a lot of shitty problems including that.

Here's my twit for anyone who cares: https://twitter.com/MetaMarx
Unless your handle is the same as your username here I'll have no clue who you are, so you should probably DM me too.