I'm out of downvotes, but this is not a reasonable criticism of his point.

It's my impression that 4chan is about anime and lolcats. I hate both. It is also my impression that there are more people who are at 4chan rather than here compared to here rather than 4chan. I think 4chan was set up to be just what it is. Is there a Less Wrong analogue that got turned into a 4chan.