Out of curiousity, do airlines only enforce this shades down policy in Y class ? I had flown J/F with both SQ and ANA and they never forced me to close the shades. I am thinking of flying QR in J. I wonder if QR has such strict policy, hmmmm,....
Personally i love looking out windows. I have seen some magnificient views, such as the Norwegian fjords when i flew Norwegian from Bergen to Stockholm, views of mainland Europe on the SQ flight between Singapore and London, and of course the Sydney Harbour on the ANA flight from Tokyo to Sydney. It would be a shame if every airline enforces the shades down policy in the future.