I read that link and can't believe the hostility and aggression of the writer.
People have every right to recline their seat to any degree they wish. People do not have the right to block it because they are too fat or selfish.
I was on a flight from Argentina to NYC. A huge fat guy sat behind me and expected me to sit upright for the 10 hour flight. NO WAY. He could buy a ticket in business or first if he needs extra room.
I am stunned that any passenger thinks they can deny others the right to recline and be comfortable. If you consider someone reclining as being in your "lap", than maybe you should hire a private jet for your next trip. Then you will have all the room you need.