There have also been e-mails from nintendo saying the ban is temp. Only the people who decided to enforce the ban know how long it will last. You really think the call center employees know? They look at the error code and speculate just like you. Just wait a couple days to find out and stop...
So deleting certs.db doesn't work. Also, I transferred my banned 3ds's certs.db to an unbanned 3ds and the unbanned one was still able to go to friend's list. Seems like a console ban. Unfortunate for those of us that just wanted extra Festival Coins :(
An EV multiplier would be awesome if anyone can make it, considering hordes and super training are removed. Also for anyone who wants more FC the offset in the save is 0x50D0008