I hear everyone saying this that it's not safe. Just hear me first we know that this ninty ban is with with device id which is then spoofed by this method. Incase ninty decides to ban this serial then thats it. you can always deselect this patch or choose to just use normal luma payload and your are again back to your Banned console!?
Think about it whats max that can happen you are already banned lol..
This can be actually useful in testing leaked pre-release games online features since what would be actually banned would be a substitute in the future.