There is another MLP forum that has a dedicated section for this. If you are looking for people to trade with, try mlparena. I've seen quite a bit of card trading done there. /My view in no way is meant to reflect any other member of staff.
It's just my personal opinion, not something that should be taken as fact. You guys do what you guys want to do; I'll just trust it's the right decision, regardless of how I feel about it.
