On the contrary, some of the best advice out there comes from people who make income from it. Hell, I used to teach stuff for free via blogs and FB and such an

On the contrary, some of the best advice out there comes from people who make income from it. Hell, I used to teach stuff for free via blogs and FB and such and I would get ignored. Then suddenly I did classes and do "tax deductible certifications" out of the exact same advice and everyone takes note. On HN, the same costly advice even gets downvoted.