Maybe you disagree with some of the conclusions, but do you disagree with the methods it preaches? Ie. reductionism, awareness of our biases, bayesian inference.
There do seem to be a lot of extreme viewpoints on LessWrong, so I think it is justified to take those extreme viewpoints with a grain of salt. But I also think that the core beliefs/approaches are valid, and so that should be factored in to how big a grain of salt you take things with.
I think they're probably a little too focused on the Bayesian interpretation, but yes, the site has plenty of good content. In particular, it is a really excellent way of finding effective charities. Where the site goes astray is that it has its own preconceived biases--e.g. its priors for the eventual development of a transhuman AI.
There do seem to be a lot of extreme viewpoints on LessWrong, so I think it is justified to take those extreme viewpoints with a grain of salt. But I also think that the core beliefs/approaches are valid, and so that should be factored in to how big a grain of salt you take things with.