how are 'innocent' peoples serial numbers going to get taken?
There's quite a few eBay listings where sellers are careless enough to so show the serial number on the back of their console/on box. Not to mention you can simply drop by your local Wal-Mart and write down the exposed serial numbers on the 3DS/3DS XL boxes. (not sure about the n3DS. I seen the n3DS boxes in my Wal-Mart and they aren't visible or is on the back of the box so opening the display case would be required to see them)
If serial number spoofing becomes widespread, Nintendo will be forced to start rolling back their bans as it will start causing significant collateral damage to their legitimate customers and they will start getting a lot of complaint's, lawsuits, negative press, etc.
You can file serial number spoofing on the long list of things you can't do on a Sky3DS. So maybe it won't be big enough of a problem for Nintendo to notice/care...
Unless there's a different number stored in the console's firmware/SOC that is related to but not the same as the one we see on the back of the console/box? Otherwise, showing your console's serial number to the internet would be a bad idea.
And if it's the other case where the serial stored inside the SoC/firmware that needs to be spoofed isn't what you see on the back of the console/box, then many could start buying 3DSs from Wal-Mart, dumping the serial numbers stored inside them and "returning" the console back to Wal-Mart when their done. They could do multiple consoles over a span of a few weeks and in the end if they all get banned, then the legit customers who bought them will be SOL because at this stage it's unlikely Nintendo will budge on the bans.
There's also pawn shops and other stores. Unlike games, I think you can still return opened electronics to Wal-Mart. They just have a much smaller return window then other things. It's 14 days I believe and a receipt is required. It's a large upfront cost, but your getting your money back in the end, so I can see quite a few doing this if serial spoofing becomes a thing.
yes it is possible to change your serial, it should unban someone, but i cannot test because i am not banned
Perhaps you can ask someone who has been banned to dump their serial and give it to you to test. It will work in the reverse. If you spoof to a banned console ID, you can't play online and will get the error. Then when you return to your real console ID, you can go online again. That would be one way of testing it without actually owning a banned console.
