I love it when you run across a poorly written prepping piece that's full of disproven myths. It's almost like this prepper did no research at all before putting something out there as "fact" This one is a lot of fun. Repeat after me. "SPRINGS DO NOT WEAR OUT FROM BEING UNDER COMPRESSION. THEY WEAR OUT FROM REPEATED COMPRESSION AND DECOMPRESSION."
The worst part of this guy is that he's been called out on the factual inaccuracies in his article and he's doubled down on his stance. Sorry bro, the physics world disagrees with you. Oh, and you're not worried about that striker spring that's under constant compression?. Forest through the trees there chief.
Some more references on springs and magazines:
http://www.luckygunner.com/lounge/magazine-springs-and-ammo-cycling/ -tl;dr: buy a revolver