Warning; Rant -
When the flat-billers got into diesel motorsports the problems at events went up and the sport went downhill fast.
When 12v Cummins' got cheap they bought them up, painted them flat black, put a 12" stovepipe through the bed, turned the screw on the pump, slapped a Monster energy drink sticker on every window, put on their white Oakley's, then proceeded to lug them around in 5th gear under the charger to blow smoke all over every car they, somehow, managed to get in front of. All the while filming it and putting it on YouTube.
Now we have EPA issues with the aftermarket companies.
Lately they found fly fishing. They're easy to spot now that it's getting colder. Just look for the bright green Patagonia puffy jacket, the Cheeky reel, and a bunch of bass fishing terms being yelled in conjunction with "brah". Now look closely because they can be confused with hipsters.
I agree with PocketWater though, as long as they respect the resource I don't have a problem with it. If anything they brought the sport some popularity with segments of the population that might not have tried the sport otherwise. Similar to the "River Runs Through It" bump.
Sidenote - "Earth is Enough" is a much better representation of fly fishing than "A River Runs Through It".