One problem is that the rules seem to be enforced few and far between.
How many times, mentioned here, and/or witnessed through our own eyes, have people been sprawled out over sofas; bags on chairs; feet on tables; loud conversations at the CCR bar that may disturb ones peace and quiet etc. yet zero is ever said by any party?
This one time, it's made an issue of.

I can't say where anything or anyone has been before touching anything. Ignoramce is bliss in these cases.