To try to get us back on track:
As I have said before in response to other questions about why a campground does this or that:
There are MANY design features built into campgrounds that are meant to influence how people use them, without having to post signs everywhere that say don't do this or don't do that. Both public and private campgrounds have been at the business of managing campgrounds for 60-70 years or more and they've learned a thing or two.
While having no threads on the end of a rinse hose may have occurred because someone drove over it an flattened the thread, it may also have been removed to quicken the time through the dump station and lessen the waiting time for others in line.
