So guest posts are your funnel? Are they done to attract people to your site? Are they done to strengthen SEO towards your site? I don't yet understand the bu

So guest posts are your funnel? Are they done to attract people to your site? Are they done to strengthen SEO towards your site? I don't yet understand the business rational of these guest posts and would like to understand the model better. If what you are stating is a valid business I would love to know this way for publishing to generate a profit better.