Due to a bug online where if Peach pulls turnips (down + b) in "For Glory" mode (where no items are allowed) users of Peach online have an unfair advantage even though it's part of her moveset. This has led to Nintendo banning users temporarily--for one day--even if they haven't been abusing the glitch. Nintendo has released a statement apologizing to players who were banned unfairly. The next online update to fix this problem will be ready in about a week.
Guess this puts an end to people hoping BBB would dump the JAP eshop version that has access to online play. After the 1.2 update releases, it wont matter anymore.
Source 1
Source 2
EDIT: Video of the glitch being replicated by someone called "Mochi"