Didn't see any pins, but a LOT of lime-green shirts.
I was too much of a wuss to go up to anyone and actually ask them if they're DISSERS, because in previous trips, every time I'd approached someone and asked if they were from the DIS, they looked at me like I was speaking Chinese. So, I gave up on asking.
That being said, I met a few of our fellow Dissers at an event, and they were all wonderful! What a great group of people we have here! This was my first experience actually meeting people here "face-to-face", and it was a great experience. In future trips, I'm going to go out of my way to include myself in DIS events.
By they way, Mister Disney, I just PM'd you. (well, not yet, because I have to send this one first, but you get the jist)