At the downtown YMCA, I see this every week. It's heartbreaking to watch people get stuck in analysis paralysis when they could be making progress. Jesse's story about the guy with the bar-only squats is a perfect example of this. I always tell new lifters that form is important, but it's something you refine under load, not in a vacuum (which is a lesson I learned the hard way). The fear of not being perfect can genuinely rob you of years of strength gains.
It's like watching someone try to learn calculus before they can add two plus two. @ellis.jesse's guy with the perpetual bar squats probably has perfect form in a mirror but zero strength in reality. All that analysis paralysis just means you're building a PhD in lifting theory instead of actual muscle. Just put some weight on the bar and let your body figure it out through, you know, doing the thing.