Nothing I like more than Wonder Trading away a Kadabra holding an Everstone. Just wish I could see the look on the horrified victim's face when I do so, I imagine it would make a great desktop wallpaper for Halloween!
Anyway, tbh, I hate this feature. If you were a friendless loser like me before Pokemon's wifi days, it was literally impossible to complete your Pokedex. Even now, it's hard to find people who are willing to trade just for the sake of evolving your Pokemon. I want to evolve my Machoke, well hey there's somebody to trade with! Oh **** he only wants shiny 6IV Mewtwo with Pokerus. Well, I'll try someone else! Oh, this guy only wants shinies as well. 30 tries later I FINALLY find someone who's willing to help me evolve my Machoke, it only took 4 hours. Good thing there are only like 25 more Pokemon that evolve by trading!!! :^)
Ya, this feature needs to go. I get it, I get why they do it, but it doesn't work and it's just stupid.