They banned cheaters from MKWii online at least, but because the DS and Wii had crap online infrastructure it was pretty much impossible to properly ban someone. With the 3DS and WiiU, not so much. Although it's impossible to tell what they'll actually do, both game and console bans are probably possible.
If it does, you might want to wait a few months unless you want to run the risk of this happening.
It probably could, but you'd have to populate it first with valid codes (aka $$$), it would take quite a bit of work, and most importantly it would be highly vulnerable to abuse. Also, Ninty could probably just contact the server, get the codes and ban themI can imagine a system where you connect to a homebrew community server and it lets you 'check out' on online cart code (from a user supplied database) and you play with that until your done with your session. After you are done, the code becomes available for another user to check out. Probably wouldn't work, just thinking out loud.
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Psionic Roshambo:
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Psionic Roshambo:
