There have been many occasions (when flying) where I’ve fallen asleep before takeoff and never bothered to recline my seat during the rest of the flight. This is usually the case on short flights. On longer flights, I can’t say that I don’t like to recline my seat and I see nothing wrong with doing so. If the seat wasn’t meant to be reclined then it wouldn’t have the capabilities to do so.
I recently came across an article from the Huffington Post: This Airline Is Saying Goodbye To Reclining Seats.
According to the article, Monarch Airlines announced that their new ergonomic seats will not recline. The decision to switch to seats that do not recline was based on customer feedback.