Originally Posted by
Adam Smith
(Although I'll note that the new site at least seems to have done away with the never-ending aircraft "change" alerts that were triggered by European carriers constantly adding or subtracting a row of intra-Europe business class, which is a very welcome change - I care whether the aircraft is a 223 or a 320, not whether AF is selling 3 rows of J one day and 4 rows the next, or vice versa).
Some people found those alerts useful - so they know if they have selected a seat in advance, and the airline then changes the J/Y config, they are at risk of being seat shifted to a random sub-optimal seat wherever the computer drops them into, so they should check their seating allocation to see what has happened.