I've actually been reading this for a few months since I discovered it through HPMOR, but I just found this thread. I've been a traditional rationalist for a long time, but it's great to find that there is a community devoted to uncovering and eliminating all the human biases that aren't obvious when you're inside them.
I'm 27 with a BS in Business Information Systems and working as an analyst, though I consider this career a stopgap until I figure out something more entrepreneurial to do. I've been slowly reading through the sequences, but my brain can only handle so much at a time.
Mostly I just want to say thanks to everyone who writes/reads/comments on LessWrong. This site is awesome. It's the only place I've found on the internet that consistently makes me stop and think instead of just rolling my eyes.