so why is he left dealing with all that BS? Because the dog owners think that the entire park is theirs and nothing else matters. So the disc golfers are stuck with worrying about themselves AND the dumbass dog walkers. instead of everyone in the park worrying about how their actions affect others.
Because if the dog walkers don't pay attention and get hit, it comes back on disc golfers. They're not going to close the park to dog walkers after an incident like that, they'll shut down the disc golf course. The consequences fall completely on disc golfers, it's in our best interest to be the ones to pay attention to all that BS.