Unfortunately, that's the cost of making your bill money from doing that sort of stuff. You are either getting bombarded with people looking for a hardware question, or you have to put out articles with today's events to stay on their calendar for classes. Telling those folks that they're statistically unlikely to be able to do anything about it does 2 things:
1) It insults them, and they'll tell their friends about how dumb you are
2) It ensures you'll never get them to sign up for a class - a class that you use in some fashion to fund your bills/lifestyle
Take the bits and pieces that have good points for different contexts that you learned from, and drive on. It isn't worth trying to square a continuity of any person for decades of life expereinces.
He has some good ideas and viewpoints, some of which may not apply to all people in all circumstances.