MDMAlliance on 16 November 2013
I think one reason why the Wii U has it but the 3DS doesn't is because #1 the problem popped up from the 3DS and #2 there are many more 3DS users than Wii U users, moderating them would be much more difficult. Nintendo probably will eventually enable it, but right now after what happened with the 3DS, a lot of people are probably really worried about their children and Nintendo doesn't want to lose the parent buyers.
