Because he has a growing family, you need to help support him.
On a serious note, the guy operates a quiet site with hundreds of reviews. They're not just "Hmm, corporation sent me this lens, lemme grovel so they send me more" but they're actual lenses, he mentions the used market, and actually gives a shit about photography.
Take for instance this review:
https://www.kenrockwell.com/nikon/28-80mm-g.htmIt's a $20 lens with a plastic mount that was a kit lens for some 35mm SLR two decades ago. Who the hell would suggest buying this, right? Wrong, it's a good performer for a budget oriented photographer, and Ken wants you to know about it.
