Interesting thread, apart from the sad, strange people making personal attacks.
What a lot of fuss about nothing. If I know ahead I'm going to be landing in a particular spot, then a call ahead is the done thing. If not, upon landing, walk over to the nearest Pub, house, etc, and ask if it's ok to park there. Any problems then I will move.
Selecting a site: far enough away as not to cause problems with downwash, and large enough to fit into, which will depend on your experience and the type.
Roll back a few years and a couple of 500's, or more, parked beside a country pub in New Zealand, after a days venison hunting, was the norm.