(Not the person you're asking, but...) I don't want to adversely affect the person behind me, but I also accept the right of the person in front of me to recline if they want to. It's not easy being me.
To be fair, I have actually once seen someone not recline, but they had four or five visits from cabin crew before the lights went off making sure they were okay, or if they wanted to be moved, or if there was a fault with their seat. Like, even the crew thought it was an unusual occurrence.
Yet every thread that touches on this on HN, there are people saying "I never recline, what about the person behind me?". And then they complain about being uncomfortable!