Fair enough. Now how about all those as*%^$#s that bring all their luggage into the cabin and proceed to stuff it into the overhead compartments, delaying boarding, take off, and unboarding?
The airlines are hardly likely to address a problem that they caused. This happens because the kickbacks from the eternal luggage theft rings are too lucrative for the airlines to end them.
The people who care enough about their stuff to do what is annoying you are the people who are obsessive enough to hire private detectives and mount stings against the theives.
As the airlines are perfectly aware.
The status quo is the cheapest solution.
Personal pet peeve.