Missed this thread, but can totally relate. I don't profess to be an expeert, so hope to not come across that way here.
I too saw a lot of head scratching 'hunting' on public this past week. Mainly incessant calling and what I consider sky busting (i.e. crippled birds lost in cover not searched, unretreivable birds in the open bay, LOTS of wasted ammo). Seeing a lot of groups that don't even bring a spread of decoys? I know how much this - the shooting, in particular - hoses up the surrounding area, so just move along to an area that isn't influenced by their behavior. Depending on conditions, it doesn't have to be that far. The boat is the best resource.
My experience has been that the egos of most are too big to try to mentor or educate. And, I'm always concerned that if you show a random jackwagon how to actually be successful, they (and all their bros) will have the area covered next time, next season, and beyond. Better to let burn through all their shells and maybe flame out on duck hunting entirely and take up another hobby. Selfish thinking and possibly self-defeating???
Also, since it came up here, snipe hunting is actually 'a thing' steeped in history and experiencing a bit of a resurgence. They are tough birds to target from the ground and successfully kill and recover. Having a good dog is a huge advatage Also, very small, so need a few for a meal. Have eaten it once and was tender and tasty.