I remember reading that post, but I totally thought she was joking about the trading part!
On a similar note, I've seen a listing on Kijiji where a person was trying to trade their vintage New Kids On The Block dolls for a Chihuahua puppy!
What the heck are these people thinking??!! The even had the nerve to be super specific about the puppy they wanted...it had to be a female and under 6 months with a bunch of other qualifications. What a nutcase!