Because he's like the 1000's of other "growth hacking" scam artists who's selling courses about his own company that sells courses, and tweeting about building

Because he's like the 1000's of other "growth hacking" scam artists who's selling courses about his own company that sells courses, and tweeting about building a twitter audience. It's completely ridiculous circular nonsense. Take advice from people who actually made a company and actually built stuff that served users, not people who sell courses about selling courses or whatever, or making a splash about making a splash. I don't care he claims he was an engineer at some point, that's basic stuff.