Here's something to pick our collective spirits up:
According to Google's infallible algorithms, 20% of the content on LessWrong.com falls within the 'Advanced' reading level. For comparison, another well-known bastion of intelligence on the internets, Hacker News, only has 4% of it's content in that category.
Strangely, inserting a space before the name of the site in the query tends to reduce the amount of content that falls in the highest bucket, but I am told that highly trained Google engineers are interrogating the bug in a dimly lit room as we speak, and expect it to crack soon.
Why would that pick anyone's spirits up? Surely in an ideal world, where you want to actually communicate, you want the reading level to be the lowest possible one that would get the idea across? Making something actively difficult to read is a good way to confine your ideas to an in-group...
Yes. In an ideal world everything interesting and important would be comprehensible to a ten-year-old. But since we don't live in an ideal world and many interesting and important ideas require difficult concepts and complex vocabulary we can be pleased with this evidence that we are rather unique in our ability and propensity to talk about important, difficult ideas.