I have been RVing for over 40 years and have seen the issue of picking up after one's dog grow as time has gone by. No one ever used to do it, and it was a great thing when the problem was first addressed. Too many campers ignore far too many rules regarding their pets. "My dog has never needed a leash" as he runs through my campsite. "I always pick up after my dog" as I watch the owner walking his dog, watch him squat, and then simply move on. "My dog has never hurt anyone" as he runs into my 3 year old grandson who's playing on my site and knocks him down. I have no doubt that this campground has a problem with owners not cleaning up after their dogs. There's no way they would invest so much money and effort into their program, knowing dammed well some will be royally ticked off by it. I give them cudos for having the nerve to hold the owner responsible. Without the cheek swab, identifying the owner would be difficult. With it, there is no argument. Simply saying 'tell everyone to poop scoop' doesn't make it happen. People for the most part only follow rules, especially ones they don' like, if there are significant consequences for breaking them. This sounds like exactly that. If a pet owner is put out by the rule - that's his prerogative. There are other campgrounds to stay at. I WILL check out this particular CG when I'm in the area. We have had dogs (none right now) and they have camped with us. We have always followed the rules. Time for everyone to do the same. Don't like it? Stay somewhere else.