Wisdom, experience and knowledge are similar but they are NOT the same. Knowledge is facts that are taught and learned. Experience is knowledge gained first-hand. Wisdom is experience, combined with knowledge, over time. By advising someone that "gear doesn't matter," you're trying to instill your experience and wisdom into someone else as knowledge. You believe you're saving them from the frustration and cost of experience when in fact you're robbing them of it. Even worse, it's hypocritical to advise someone to "go out and shoot," to learn through experience, but then try to rob them of that very experience when it comes to purchasing gear. You can't play the blues convincingly by observing someone else's heartaches.
While I often strayed away from repeatable testing to include a healthy amount of subjectivity, I'm now embracing my biases and forgoing all pretense of being "unbiased," and here's why: I have my skin, aka wallet, in the game. Unlike others who are receiving review units, renting, being gifted items to review or receiving some form of compensation, I'm reviewing stuff that I've actually bought. These are things I've intensely researched, bought, used, and intend to keep. Sometimes I buy purely out of objective needs, like my ND filters. Other times, I'm driven by subjective factors, like my choice to use Fujifilm bodies and lenses. Either way, my purchases are made based on a conclusion I've formed from equal parts objectivity and bias. I am biased. My reviews are biased. I'm not justifying my purchases to anyone but I simply cannot claim to be unbiased when reviewing my own gear. The goal of my reviews are to identify potential pitfalls to avoid the expense of experimentation. It's not my goal to tell you what to buy; my desire is to expose aspects of an item only an owner would notice. There can be things that you're blind to upon purchase, features and issues that can make or break it for you, and this jeopardy goes up exponentially as the price increases, especially if bought used. This is my choice to be an advocate and to avoid being an "influencer."