Originally Posted by
rickg523
It's more a matter of courtesy than efficiency. I'm Pre, but in the regular lines I've often had to stack abandoned bins myself to get at my bin that's still in the machine shrouding unable to roll down.
What is the courtesy? Clogging the line by staying there longer than necessary? You cannot get to your bag if someone is standing there. If I get out of your way, you can stack bins (a rarity) if needed to get to your bag. If flyers get out of the way, you can do what you need to do.
And you did change what OP said to start...
"It really drives me crazy that at many airports the bottleneck is actually the lack of tray-collecting. If everyone would do it, time could be reduced by 10-15%."
This premise is complete and utter nonsense.