Everyone saying to lay low.. or that theyre gonna unban using public friend seed, then leave wifi disabled dont seem to understand.. That isnt gonna save you if another banwave rolls through.
I definitely recommend being as safe as possible.. but if Nintendo sees 100s or 1000s of people using the same seed, or if a single person using it isnt careful.. the seed and any console using it will be banned.
If youre gonna go through the trouble of unbanning while things are still sticky, you might as well utilize the online capabilities.. while you can. You never know if youll be so fortunate in the future.
Also.. to the ones bitching about wasting a seed.. its not like there arent countless 3DS's and seeds in the world. We arent about to run out.. so complaining about a single or even a handful of seeds being made public until a more permanent solution is found is kind of pointless and annoying.
Chill. If you dont wanna use a seed or risk rebanning, dont. But let people do with their seeds and their consoles what they want to. Its theirs, not yours. And the community has plenty of seeds stored away in hiding, I guarantee you.