Holy hell, i hadn't signed on the Miiverse for a week due to lack of games motivating me to boot up my Wii U and unlike most social websites like Facebook, after the while of being offline i actually had unread messages and notifications!
Also, apparently if you don't sign into the interwebs on your Wii U, the little guys on Wara wara plaza will be replaced with NINTENDO -named guys who are always coloured the way the software they are standing under is. The said little fellers give you hints like "Connect to the internet and you can download a system update" which was surprisingly true.