I can't find my first post in the archives--- but I believe it was related to earning LatinPass credit on the TACA Peru LIM-Cuzco flight.... I was about to book a discounted ticket, not realizing that only full Y would earn credit. I would have been in deep doo doo if I got back to the states, then realized I'd have to head back to Peru to re-do the 45 min. flight. I first came across FlyerTalk as I searched fares at the school computer lab during finals week.... and when I read posts about the Y TACA Peru fares, I was still able to change my ticket.
One memorable moment: when Randy's LatinPass itinerary was posted for review, I caught a mistake (some flight was booked as TACA not Aviateca) and I e-mailed the FT folks... I like to think that my observation helped our own Randy get his Million.