I know many other pilots, and ATC for that matter, and the only people I've ever met who give a rat's ass about listening to airband transmissions are forumites who seem to get some bizarre satisfaction from being able to trot out obscure legislation from memory.
Let's not forget this is a piece of legislation almost 60 years old which in many ways is grossly outdated in the 21st century. Any organisation with something they want to keep secret started using encrypted radio years ago.
Back when I was a student PPL, I used to listen to airband quite a lot and found it useful. I lived near the airport with great reception, but worked miles away, so set up a streaming server so I could tap into my scanner at home via the web. I mentioned this on a forum and from the ridiculous reponses I got you'd think I'd just confessed to hacking someone to death!
I phoned my regional police HQ and asked what their verdict was, and practically got hauled in for wasting police time.