sborwege on 27 April 2015
so after contacting Nintendo support, the first lady had to talk talk to a higher rank person to figure out the full details. What it boils down to is it was technically my fault. I changed my Mii nickname to friendcode as well so it would show up when racing online in Mario Kart(still took them a year to catch it.) But when it shows friendcode in Mario Kart and friendcode is my username it violates the policy of sharing NNID's over miiverse. I do think that policy is stupid but I do understand where they would consider it a violation. Just had to change my Mii's nickname, and they said there is no issue with my NNID.
