I always find it frustrating waiting for my luggage at a baggage carousel, because everyone crowds up as close as they can to the point where the baggage emerges, and then claim places along the track to wait for their baggage to come to them. Of course, the baggage doesn't come out in the same order as the people lined up to receive it, so the first one in line doesn't really enjoy a significant advantage in terms of waiting; they just don't have to watch their baggage move along the track for as long as someone at the other end. And crowding in to the track so as to be able to grab your luggage as soon as it reaches you doesn't really gain you much anywhere along the carousel, since you'll often be jostled by people squeezing past to get their luggage which, in defiance of your place in line, seems to have come out before yours.
The error in thinking here is pretty obvious. We are all accustomed to forming lines to wait, and when we wait for our luggage, we unconsciously slip into queue-forming mode, establishing rights of priority by arriving first and so forth. For a lot of things, this simple rule is actually a rather equitable; a person who has been waiting longer probably deserves to be served before someone who only just arrived. But in the case of the baggage carousel, this priority is irrelevant, because the order in which the baggage emerges is utterly unrelated to the sequence in which passengers arrive to claim it. And in fact, the queue-forming instinct actually introduces a lot of unnecessary delay and inefficiency into the baggage carousel system.
Think how much more efficient the process would be if everyone just stood back ten feet or so from the carousel, and only approached it when they saw their luggage emerge. There'd be lots of room for them to check the label and claim their bag, and get out of the way for the next person. Most people would be able to claim their bags almost as soon as they appeared, and not have to wait for it to slowly make its way around the whole carousel to the position in line they managed to lay claim to in the queueing-up process.
I suspect most people realize this, and would be happy to stand back a reasonable distance from the carousel, but unfortunately it only takes one person to trigger the queuing behaviour, and then a sort of Prisoner's Dilemma takes over: you may know perfectly well that you'll get better results if you all cooperate, but if anyone defects, then you're all better off defecting. And so we all crowd in around to claim our place in a non-line that just slows everything down for everyone and adds inconvenience and stress to the already inconvenient and stressful business of travel by air.
I wonder if it would help to put up signs or mark off the ground with masking tape or something?