It was not about literally blind people. I wrote of spiritual blindness. It is obvious from the entire context of the post. And, obviously, you are blind , also. Anyone who attempts to denegrate character, so fanatically , on Usenet, is blind , spiritually blind.
Blind people are always sad, deep inside.
Only those who have eyes to see, and ears to hear, can find joy. Your laughter is not one of joy, but rather something else that is difficult to describe.