Comment by UncleMeat
What's also remarkable is that these people often have incredible disdain for communities of experts who study these topics for their careers. The number of times that I've seen one of these blogs discuss a topic that they believe they have invented while ignoring the mountains of literature already produced on the topic is... concerning.
This is what no humanities education does to a motherfucker.
My favourite genre of this is when the crypto community rediscovers centuries of economic lessons from first-principles.