I kinda like it from the point of view that it can make for a fun badge. Yeah, it'll slow down fraud (but there are always ways says the guy who made his living ghosting Boston industry conventions and trade shows in the 1990s) but it can't be stopped. Now, you can make for some pretty badges if you enable a picture to be added.
Still, one of my all-time favourite badges was a leadership thingee I went to when I was in High School where they took a Polaroid, punched a hole in each corner and ran a string through it and then wrote your name in the white area. They managed to make those things for 3k+ attendees. It was really neat!
Chris