Yea, I've never really understood reclining seats, especially on domestic flights. I've certainly never used mine, excluding 18 hr flights or something like that during the times when pretty much everyone is catching some shuteye (it doesn't really matter if the person in front of you is reclined if you are too).
I have low orexin (but fortunately not full-blown narcolepsy, like my sibling). It basically means that I fall asleep in any airline cabin the instant the safety briefing ends, and wake up when the wheels touch pavement. If I don't recline, and wedge my head in place somehow, I always wake up with severe neck pain, because my head lolls into uncomfortable positions.
Airline flying is simply too boring for my brain to be able to stay awake for it.
Aircraft are not assigned to the same routes at the same times every day. They're chopped and changed all the time. It's impossible to have different configurations for different aircraft.
