How do you feel about people walking through your campsite?

I paid extra for a site that is closer to the river for my convenience, not others. I have a very large dog who has no problem with strangers that we invite into our site - he does have a problem with those that we have not. I have expensive gear - if something goes missing, I will mention to the authorities who was walking through my site uninvited. A window in my trailer may be facing a part of the site that is only visible if you are in the site - somebody may be changing inside that has a reasonable expectation that they do not have to pull the curtain for that window.

You wouldn't walk through a stranger's hotel room uninvited because it is a shortcut to the pool.