The Internet is just people posting their opinions, and they often reinforce each other. The Internet has lots of ludicrous stuff like the right-wing media bubble where they bounce lies back and forth until they start sounding truth-y, birthers, people who think a guy who went bankrupt 4 times and pimps his name out to buildings is a great presidential candidate and people who think humanity is 2000 years old and dinosaurs existed at that time, too.
I don't think Pledge is the devil incarnate, but I also don't think it's the best thing for your motorcycle, but as I said, to each his own. Spray away.