The core observation is basically: Society has gone downhill and many people seem to think only of themselves and make no effort to follow accepted rules and standards.
And an overwhelming number of replies seem to follow along the lines of "How dare you criticize people who park in handicapped spots! You don't know my situation! My situation entitles me to do what I'm doing! Don't take that tone with me!"
Hmmmmmmmm.
I noticed the same thing.
In the immortal words of Jamie Hyneman (Mythbuster): "Well, THERE'S your problem!"