>I found the Magsafe adapter cords would fray, corrode, and blacken pretty easily, becoming a fire hazard. Every Macbook I owned, I would need at least one replacement over a 3 year period.
That wasn't a fundamental problem with the MagSafe connector, but yet another symptom of Apple's detrimental obsession with aesthetics. The cable (like all Apple cables in recent years) had inadequate strain relief. Apple knew this, but decided that frayed and burned cables were preferable to an ugly strain relief boot. The problems with Apple cables are easily prevented with a few inches of electrical tape or a couple of pieces of heatshrink tubing to provide a satisfactory level of strain relief.
That wasn't a fundamental problem with the MagSafe connector, but yet another symptom of Apple's detrimental obsession with aesthetics. The cable (like all Apple cables in recent years) had inadequate strain relief. Apple knew this, but decided that frayed and burned cables were preferable to an ugly strain relief boot. The problems with Apple cables are easily prevented with a few inches of electrical tape or a couple of pieces of heatshrink tubing to provide a satisfactory level of strain relief.
https://www.theatlantic.com/technology/archive/2012/07/why-a...
https://support.apple.com/en-gb/HT201600