This is instantly what I thought too. Essentially this guy is teaching how to get rich by using SEO, catchy gimmicks/ideas, and the likes. The spam teacher themselves get filtered, how ironic.

Heh - I wouldn't be surprised if the language used sets off the filter. Machine learning isn't great at abstractions like "writing spam" versus "writing samples of spam someone else might write", so I imagine this sort of topic is particularly prone to filtering.

Yes, welcome to the world of Viperchill - the shadow king of get rich by teaching others how to get rich schemes. I wouldn't be surprised if Google personally targeted him, I would do :)

Sadly this is happening to a lot more people than just me otherwise I would not have written about it.

Exactly. World's smallest violin plays.

With a title of "Launching my new daily blog (and podcast)", and sending in bulk, I'd expect a good spam filter to send it to spam. "I’m Starting a Brand New Live Case Study. Over one hour of free training in today's video..." was also flagged as spam. On keywords alone, those titles just scream "spammer".

About how to spam?

Lol, that's quite the jump you made there.

If you read the article, you'll find there are many other industries which (suddenly) have the same issue.