As Polygon (and anybody with a 3DS) can now tell you, Nintendo has now suspended Swapnote.
Don’t know what Swapnote was? Think of it as a texting service on the 3DS. If you were 3DS friends with somebody you could draw them a picture, send them a picture you’ve taken with your 3DS, scrawl out a message.
Why are they suspending it? Because children are being exposed to inappropriate content because they’re sharing their friend codes online with strangers.