I think it's a minimization of the warnings not to bring weapons and other dangerous articles onto an airplane to asking if the reader promises not to do any harm. In reality of course, things can be dangerous even if the reader didn't intend them to be. I fly a lot and haven't seen such a question stated in this way.

They did that in 2016 already. It's exactly as stupid as it sounds. No one that actually is, is going to answer it honestly, and everyone else is going to say no, so obviously it won't work.