Habr as a source of information

Wikipedia has a criterion for dividing sources into primary, secondary and tertiary. Primary is any fact provided by a participant in events, such as blogs and forums. In secondary, primary material is correctly used. The tertiary source, in turn, generalizes the secondary. Wikipedia in the vast majority of cases is a tertiary source.

ru.wikipedia.org/wiki/ВП : AI

Habratopik can be the source of any of these three types, but Habra herself, most likely, is neither an “encyclopedic article” nor a “Vasya Pupkin’s blog”. This is something in between, this is the presentation and retelling of existing material, for example, a review of a site on the Internet, although there are original authoring materials on Habré.

That's what Habrahabr seems to me at the moment ...