I see. Having your own third level (or) subdomain with file hosting seems to be better than walled-garden. Let me ask the same question => why are there fewer posts about individually motivated essays rather than SEO (or political blogs)?
Making money from blog is not a first priority (making money by selling subscriptions or teaching courses is completely ok for readers, imao as long as the writer is motivated for sharing)
Making money from blog is not a first priority (making money by selling subscriptions or teaching courses is completely ok for readers, imao as long as the writer is motivated for sharing)