Gee Final 3 Greens, you certainly do enjoy mixing semantics don't you?
I disagree. Checking one's boarding pass at the aircraft door has a purpose. Yes, it is also an operation but it does serve a purpose whether or not you agree with that purpose. If you consider it irritating that's on you. (a mosquito serves a purpose also.
Which is to suck your blood. It may be irritating to you when it does so but it does serve a purpose.)