Well, I was just speculating - I don't actually have any idea what the LW community in general thinks of the issue. What I was attempting to speculate is that the reason these topics aren't discussed much is because the contrarian/skeptical position on them is clustered with the set of contrarian positions commonly held by LWers, and therefore aren't discussed much since the contrarian position on them is basically that they aren't deserving of much attention, especially relative to the kinds of existential risks LW is concerned with.

I'm not sure how much more detail I can go into on my thinking without violating the "no current politics" rule.