cattleclass;
Nice question, I have been asked many times by crew to close my window blind on transatlantic flights in order that folks can watch movies. I generally do so, but INMHO, if I have paid money for a seat with a window, and gone to the trouble of requesting same, then If I want to look out the window I will, within reason of course.
If airlines have a problem with sunlight affecting the preformance of the IFE equipment, let the airlines spend the money on quality screens and let me lok out the window, if I want