I don't know how much a few anecdotes matter, but to answer your question, no. My MacBook from 2009 is running perfectly fine today. I used it quite heavily throughout college and always keep it on sleep mode so it's been running pretty much continuously for years. I did replace the hard-drive with an SSD, but I still use the original as a small portable drive.
After giving that MacBook to my dad, I upgraded to a 13" Retina MacBook Pro, which is amazing. I used it for a few months before selling it to my brother and switching to the late 2013 15" one. Both laptops are running great and there are no screen issues.
And for what it's worth, I had a positive experience when I needed to bring the 15" into the Apple store. I had stupidly used a cheap wireless mouse with a plastic USB connector and a piece of plastic got stuck in the USB port. Apple removed it free of charge.
After giving that MacBook to my dad, I upgraded to a 13" Retina MacBook Pro, which is amazing. I used it for a few months before selling it to my brother and switching to the late 2013 15" one. Both laptops are running great and there are no screen issues.
And for what it's worth, I had a positive experience when I needed to bring the 15" into the Apple store. I had stupidly used a cheap wireless mouse with a plastic USB connector and a piece of plastic got stuck in the USB port. Apple removed it free of charge.