Nah, it's because they're consultants, which means they need to constantly drum up business, which means that they need potential customers to believe they have unique knowledge that'll help improve their business and all the alternatives are shit. It's a sales pitch. And because they're consultants, they don't need 80% or even 10% of website viewers to convert: they just need a handful of customers who will each pay them tens of thousands of dollars for services.
Controversy is great advertising: they get all the folks who hate them to help spread the word about their services.
It's the same thing with software methodologists, gurus, and architects. Roughly daily there's a new blog post about how [common practice] is now considered harmful, and you need [proprietary expertise held by consultant] to implement some other replacement instead. These posts may or may not be helpful to your software engineering efforts, but they are certainly helpful to the poster's bottom line.
Controversy is great advertising: they get all the folks who hate them to help spread the word about their services.
It's the same thing with software methodologists, gurus, and architects. Roughly daily there's a new blog post about how [common practice] is now considered harmful, and you need [proprietary expertise held by consultant] to implement some other replacement instead. These posts may or may not be helpful to your software engineering efforts, but they are certainly helpful to the poster's bottom line.