I think the only hacks that should be allowed are aesthetic ones that can only the hacker can see.
Like 'Red' and 'White' Ink.
If anything is released, people will figure out to take it further. Ideally it would also make it that much easier for Nintendo to do something about, but right now it seems like the exploit itself would be very difficult for them address.
Oh boo hoo, a 12 year old loses 1 round because of me
Man, you are straight up what is wrong with modern online gaming. You're why we don't have voice chat.