"Online, the answer tends to be a lot simpler. Most people who publish online write what they write for the simple reason that they want to. You can't see the fingerprints of PR firms all over the articles, as you can in so many print publications-- which is one of the reasons, though they may not consciously realize it, that readers trust bloggers more than Business Week."
is very dated though. Nowadays pretty much anything on Medium or Substack should probably be treated as ads or personal branding by default.
