I'm writing a practitioner-driven piece on what thought leadership truly means — not the "share your expertise" playbook version, but the real rules that only become clear once you've done the work. I'm looking for founders, marketers, strategists, and brand builders willing to share what they learned through experience. Please answer: 1. What's one unwritten rule of thought leadership you had to learn the hard way? 2. What's the most common mistake you see brands or founders make when trying to build it? 3. What does real thought leadership cost that most people underestimate? Be as specific as possible, please. Include your name, title, company, and LinkedIn/website. Contributors will be credited by name and title.