My Little Pony: Friendship is Magic - Trading bad

HOLY SHIT IT ALL MAKES SENSE!

Pinkie cooks loads and loads of “rock candy” in the Cake's bakery and makes it into necklaces, which she then mails to Maud -

The reason why Maud never eats them is because she SELLS them at the trader’s exchange!

I bet Twilight don't used the 'magic' word.