I fly Air New Zealand fairly often
and re blinds up or down. Now I love looking out the window. So on the overnight sectors I always close the blind half an hour after take off and obviously open the blind once we get begin descent - though on the AKL LAX sector I open just as breakfast is being served 2 hours outside LA.
When I fly LHR LAX in J I just love the view flying over Greenland and Canada so always select a seat eg 6A to minimise disturbing other pax whya may wish to sleep. I think that is fairly reasonable.
I was outraged when flying TG in J BKK NRT departing at 7.30am to be told to close the blinds as other pax wanted to sleep. I said no and the FA did not press the issue as there were only 6 other people in J.....BTW , really enjoyed the view in that sector also.