I"ve been waterfowl hunting since I was 12. Let's see - that was 46 yrs ago. Unethical jerks have always been out there but not near in the numbers as today. I have a passion for duck and goose hunting and I prefer a quality hunt over a quantity hunt any day and I'm not about to give it up for any of the reasons listed in previous posts.
As for social media giving the "whiners" more audience - maybe but that really doesn't answer the OP's questions.
Social media has given the average Joe and average jerk a place to find out about all the hot spots for most anything in the area. Duck hunting included.
There are many more waterfowlers today than I've ever seen. I hunt Nisqually, Potholes, Moses, Willapa, Longview and Cathlamet. Everyone of these locations has seen an increase in the number of hunters using them. I'm talking about "boat" hunters, not walk in hunters. I got up early and paddled my canoe long distances for many years to avoid competition and finally this year bought a duck boat/motor setup. The same way high performance boats have taken over the fishing world, the same has happened to duck hunting. It's not unusual to see a dozen large boats with very large motors and flood lights so they can drive 50mph in the dark to get their spot before you at the boat launch on any given weekend morning.
Too many hunters for too little area. Every time a 'no shooting' zone is established, those hunters have to go some place. Some place is getting crowded.
Also, a lack of enforcement agents to handle many of these jerks. Ethics is not enforceable but shooting at ducks with other hunters directly in the line of fire is.
The name of our US Fish & Wildlife Service Enforcement Officer is: Dan Huckel, mobil phone: 360-292-3500, daniel_huckel@fws.gov
Feel free to contact him about your concerns. He seems to be a good guy but is spread darn thin across western WA and part of OR. I've spoken to him a few times and met him at Nisqually. He wants to hear about the problems so he can address them.