The Wired piece is, "WTF Just Happened: Why My Gadget Charged Very Slowly (Or Not At All)" by Tim Moynihan.
The tidbit I didn't know that I want to ensure I don't forget:
If you want to replace a cable to charge your tablet without paying a premium for a manufacturer-supplied replacement, your best bet is to look for a 28/24 AWG (American Wire Gauge) USB cable. This is a wider gauge than the 28/28 cables supplied with 1-amp chargers, and more of the cables’ wires are dedicated to transferring a charge. These cables are easy to find at all the major outlets (Monoprice, Amazon, Newegg) starting at less than $2.[links in original]