Agreed, which is why you seldom hear "you n00b, go read the dozens of unindexed posts!". It's a bit of a pity those aren't better indexed - a few of them are referenced on the wiki, but I don't know how many people use it to look for new posts to read (I know the wiki helped me when looking for older posts on decision theory).

A bloglike thing like LessWrong may not be the best format for collecting information for a rationalist community. Maybe it would be better to use some kind of of rationalist wiki ;-)