I know exactly whom you're referring to. That individual was booted off of greekchat quite a while ago. I'm not worried about his petty crusade of self-righteousness.
To address you comment, there is NO difference in selling an original vs selling a reproduction. The design is what's copyrighted and trademarked, not just the physical object. Selling anything bearing the design, whether original or not, is still a violation of copyright and/or trademark.
The problem is, most national headquarters don't exactly have huge numbers of people working in their offices. Since their primary concern is the proper administration of the Fraternity's affiairs, and not tracking down some wannabe who's trying to make a buck off of Fraternity property, this sort of thing usually gets put on the back burner. That isn't to say that nothing can be done. If you'll notice
here, you'll see that the Delta Phi Fraternity has taken a proactive step in removing auctions from ebay that violate their rights. It takes time for a Fraternity Office to pursue such matters, time some offices simply can't afford to spend -- BUT THAT DOESN'T MAKE IT LEGAL!!! That's the point.