they do this at YVR for almost every flight. it's actually quite funny to watch as they are never wearing Air Canada attire, and once there was a customer who had arrived after a long week on the road pretty much tell the guy off so that he could grab his luggage and be on his way.

I think there's multiple reasons for it:

1) Timing - they are trying to get their times down between the plane getting to the gate and customers getting their luggage

2) Fraud - I can only imagine how many people claim luggage as stolen when i really isn't

3) Timing - trying to keep track of priority tags and when they show up

I've seen it done manually at YOW where a girl with a clip board and a stop watch was recording everything....

Hopefully they get the info we've been telling them for years - it takes WAY TOO LONG!