Great post! I’ve been contemplating what to do with my blog site as well.
As Perry pointed our, academic blogging is great writing practice. I know I have had little practice in non-scientific writing in the past five years; having to blog and keep a weekly journal has been a wake up call. While writing has gotten easier as the semester has progressed, I’ve also noticed that my verbal communication may have also improved due to constant blogging–just another benefit of maintaining a blog. That being said, blogging is time-consuming, and it will be hard to justify as I get closer and closer to my prelims.
By the way, I believe the concept you’re trying to recall is confirmation bias, and I absolutely agree that it is common for readers to have this type of bias when reading blogs. I know I, too, have confirmation bias when I feel passionate about a viewpoint.