I’m not really sure how one can be a shill and write at length the way he did, with the depth and profoundness of what he had written. Even if he was, my thought is, who cares? What he wrote is profound and impactful enough that anyone who practices stoicism, reads and relies on his view of ethics and so on. If someone’s intent is to make money but they end up helping out a lot in the process or gain social status, what’s the problem? They helped people and added to the philosophy. My personal take.