Originally Posted by
raph
I always enter flights in advance (at time of booking), so that I can have a statistics forecast. Also it's kind of nice to get my Facebook updated with "just landed at XYZ with Airline", even tho this is usually wrong due to various delays...
Another advantage is that you could (theoretically) find other members who WILL BE on your upcoming flights, rather than who has been on a flight with you.
I also enter mine as soon as booked, mainly to keep track of my plans. Sometimes I think it's the only way I can remember where I'm going, and what I've already booked and still need to book!