The resurgence of mechanical keyboards is one of the best things to happen to computing in a decade. If you aren’t using a mechanical keyboard you probably hate yourself as they are so vastly, absurdly superior to the sloppy crap of a membrane type keyboard.
The article itself is pretty terribly written and also misses the main reason that manufacturers stopped making mechanical keyboards, which was cost. Mainly I just wanted to push mechanical keyboards as they so vastly improve the experience of using a computer.