If you're trying to trade pins for other PAX swag you'll want to check out the Swag trading thread that will pop up in each PAX's subforum post PAX concluding (PAX Prime 2014 Swag Trading Thread doesn't seem to be posted yet). If you're looking for solely Pin trading then you are in the wrong forum. The Pinny Arcade forum is the place for that. You'd probably also have good luck using Pinny Pals. This is of course assuming you mean Pinny Arcade Pins. For other Pins I'd use the PAX Swag Trading thread.
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Steam - Miker525 | Xbox Live - Miker525| PSN - MikeRosenberg
Websites - Gamerations - MikeRosenberger.com
Pinny Pals - Miker525