I actually don't read LessWrong itself, but I've interacted with lots of people and sub-communities that are associated with / spun off of the rationality movem

I actually don't read LessWrong itself, but I've interacted with lots of people and sub-communities that are associated with / spun off of the rationality movement. These were just rough pointers to directions I've followed to find higher levels of quality discourse. Ribbonfarm is another such community.