We can approach this question in a way which completely sidesteps the debate about whether the thinking which gets filed under the name of "philosophy" has been successful or unsuccessful, and whether philosophers are good or bad thinkers. Just try substituting "LessWrong" for "philosophy" throughout Wei's article; the problem is not substantially changed. Can the LessWrong worldview account for its own existence, and for the debate and discussion which occur here every day?