Hi team,
2 days ago, I checked the J seatmap on my upcoming CX840 flight on 1/23 and I saw a few empty J seats to pick from. I recently checked into my CX840 flight and saw that there were around 6-7 J seats empty. This was about 12 hours ago. I just checked again and saw that there are 13 J seats empty! I am wondering how it is possible that the plane was more full LONGER before the flight departs..? It can't possibly be the case that 6 people were bumped to a previously empty F class right..?

Does CX block some seats until some hours before the flight or something? Are a coincidentally large number of people canceling their tickets?

Thanks a lot for the insight!