Minor, but nice
Just a few hours ago Nintendo jumped onto the Miiverse to post a quick update regarding some new functionality on the PC side of the service. It turns out that you'll now be able to display your favorite game genres in your profile, up to a limit of three.
To show them off go to your user page, then user menu, then profile settings. This option has been available on the Wii U and the 3DS for a while apparently -- I just never used it!