Cool idea on the trades Drago!
As far as Wonder Trade goes it's been a crapshoot. Sometimes get something decent, sometimes get screwed and sometimes be the one being the dick ^_^()
It's a good idea in practice but the key thing to remember is to not put something up on Wonder Trade if you feel like you won't get a good deal in return. For the most part I think the idea of getting something pretty decent is what keeps people honest. They put something common up and get something they like. Later on they return the favor. If it wasn't for that then honestly it'd be nothing but Magikarp and Zubat. Speaking of which.....
Not going to lie.....took part in that second debacle ^_^()