I'm sure some people find some of these ideas distressing or depressing, whether or not they actually accept them as true in whole or in part. I would say I do, in a qualified way. But I have decent perspective on the whole singularity/LessWrong/FAI/etc/etc memeplex.
How many people feel despair in imagining a heaven (positive singularity) that they'll miss out on if they don't survive long enough? I don't think about it, but I already have plenty of reasons to like being alive.