This thread reminds me of the deniers from this thread:
https://forums.macrumors.com/threads/1272321/
Apple fans sometimes take things to a whole new level. If they personally have never had a problem, then a common problem that a lot of people have experienced MUST not be a problem and/or user error.
Go look at the Amazon Magsafe reviews. 2.5/5 to 3/5 stars.
Go look at the Magsafe reviews/ratings on the Apple store. 1.5/5 to 2/5 stars, depending on the model. Here's the link:
http://store.apple.com/us/search?find=magsafe
The old style Magsafe adapters are among the worst reviewed pieces of hardware Apple has ever produced,
even on Apple's own official online store. Apple has actually acknowledged this by providing
retroactive refunds to customers who bought their own.
Personally, I've had three MBP T-shaped Magsafe adapters go bad in about a four year span. (Apple has always provided a replacement, free of charge.) I have another MB Magsafe that went bad that I paid the reduced rate for. Prior to that, I had issues with my old Powerbook G4 adapter. Since the fraying PowerBook adapter, I've been pretty fanatical about not bending the cord near the brick itself. I wrap my cord this way before putting into a composite/neoprene case to make sure it doesn't get bent:
The Apple Store manager who was doing a MBP replacement for me (on a failed MBP) actually made the comment that if I traveled a lot, I was going to need a spare Magsafe as she let me keep the older (actually almost new, itself a 3 month old replacement) while she gave me the new one that came with the replacement MBP.
If your MacBook/Air/Pro sits mostly on your desk and doesn't go anywhere, you will probably never experience this problem. OTOH, if you travel extensively or work in an environment where you are constantly moving your Magsafe around, then you are more likely than not eventually going to run into this problem. I like it and wouldn't trade it for the equivalent PC laptop power brick (I carry a ThinkPad brick around, too - never failed BTW), because it's compact and extremely convenient but let's not pretend that this isn't an inherently weak design.