As a person who might be sitting behind you, it makes no difference to me whatsoever whether or not you recline -- it's your seat and your space. However, as someone who is NOT comfortable sitting bolt upright, I have every intention of using the space allotted to me by the airline, and I will recline.

You're not being considerate of the person behind you. You're simply trying to enforce your rules which are at odds with the airline's.