Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
I made a comment related to this on the SSC post about the rationalists I met in person in the Bay Area. I think it's the continued and extended version of what you stated above with some people in the Bay Area calling themselves rationalists while being in the 20% LW-ish (or lower) crowd. I primarily focused on the overcoming biases and getting stronger parts.
It is interesting how a community built around the Sequences gradually changed into a community of people who treat mentioning the Sequences almost as a faux pas.
With the consequence that the ideas mentioned in the Sequences are more mentioned than used (well, those few of them that are mentioned at all), and rationality becomes a question of group affiliation.
There is an analogy with Christianity, except that what took Christianity 2000 years, we managed to achieve in 2000 days. Truly, the progress is accelerating exponencially, and the Singularity is near!