From near the end:
The primary impacts of reading rationalist blogs are that 1) I have been frequently distracted at work, and 2) my conversations have gotten much worse. Talking to non-rationalists, I am perpetually holding myself back from saying "oh yes, that’s just the thing where no one has coherent meta-principles" or "that’s the thing where facts are purpose-dependent". Talking to rationalists is not much better, since it feels less like a free exchange of ideas, and more like an exchange of "have you read post?"
There are some specific areas where rationality might help, like using Yudkowsky’s Inadequate Equilibria to know when it’s plausible to think I have an original insight that is not already "priced into the market", but even here, I’m not convinced these beat out specific knowledge. If you want to start a defensible monopoly, reading about business strategy or startup-specific strategy will probably be more useful than trying to reason about "efficiency" in a totally abstract sense.
And yet, I will continue reading these blogs, and if Slate Star Codex ever releases a new post, I will likely drop whatever I am doing to read it. This has nothing to do with self-improvement or "systematized winning.
It’s solely because weird blogs on the internet make me feel less alone.