It is the rare researcher who studies a topic solely out of academic curiosity. Grant considerations tend to put on heavy pressure to produce results, and quick, dammit, so you'd better study something that will let you write a paper or two.

Yes, you should watch out for bias in blog posts written by people you don't know potentially trying to sell you their charity. No, you should not relax that watchfulness when the author of whatever you're reading has Ph. D.