Neither. I'm saying that a popular attitude of LW culture is to prefer not to "believe" the thing it's useful to believe, if there is any evidence the belief is not actually true, or often even if there is simply no peer-reviewed evidence explicitly associated with said belief.

My immediate reaction to this paragraph is skepticism that I can believe something, if I don't believe the evidence weighs in its favor; other people might be able to choose what they believe, but I've internalized proper epistemology well enough that it's beyond me. On reflection, though, while I think there is some truth to this, it's also a cached oversimplification that derives its strength from being part of my identity as a rationalist.