A blog is a publishing habit
A blog can be one person's durable thinking surface. It works when the author has a consistent point of view and useful archives.
The trust contract is personal: readers return because the author keeps making them smarter.
A media site is an editorial system
A media site needs repeatable formats, quality control, distribution, contributor guidelines, and a clear audience promise.
The trust contract becomes institutional. Readers need to understand what belongs, what does not, and why the editorial bar exists.
A community is a participation system
A community is not a comment box. It needs moderation, identity, incentives, contribution paths, and visible norms.
The product risk changes because users are no longer only consuming the platform; they are shaping it.