[MangezBien]

The only person to be upset at is the one who didn't put access control on the site. That was a publically available endpoint. The better analogy is putting something private on a public bulletin board and being mad if someone read something you didn't want them to.

[ModernMech]

A billboard is a broadcast message though, whereas an HTTP request is more like a back and forth exchange between two participants. So I think the original knock->response->enter is a better metaphor.