I love the pet runs - love being able to let my pups (now pup) off leash to run and roam.
That said - campgrounds and rv parks are no different than anyplace else - they have rules. Some are for singles only, some for gays only, some for certain religious groups only, some membership only, etc etc etc. I started out traveling with 2 dogs, one of whom was large - and I never had trouble. But if a cg doesn't want to have dogs, I don't go to that one.
It's impossible to tell a dog it can't go potty on the way to a dog run - but as long as you pick up - if they have a problem - to heck with them - don't go back there. Lots of the rules are for the idjits that do NOT take care of picking up - like mentioned above even at homes.
Oh, I grew up in a neighborhood where kids and dogs were not allowed near one neighbors yard. We just loved to do something when we knew no one was watching Some people are just jerks.