I've been a professional developer for 15+ years, I don't think I've ever seen anything posted on stack overflow of high enough quality that I would happily paste it into a production system.
Great to use a guideline for a problem... but copy and pasting from stack overflow (even with a comment to that page, which i've seen!) just no!
I'm inclined to agree with you, though I still think that RealDinosaur deserves a lot of credit. He or she was still honest and forthcoming about that. It's impossible to start teaching better practices if people aren't honest about what they do!
Great to use a guideline for a problem... but copy and pasting from stack overflow (even with a comment to that page, which i've seen!) just no!