Actually I am a bit surprised, the post got two downvotes already. I was under the impression that LW would appreciate it given it being a site about rationality and all.. I've been reading LW for quite some time but I hadn't actually posted before, did I do something horribly wrong or anything?

This list falls into a common failure mode among "skeptics" attempting to make a collection of "irrational nonsense". Namely, having no theory of what it means for something to be "irrational nonsense" so falling back on a combination of absurdity heuristic and the belief's social status.

It doesn't help that many of your labels for the "irrational nonsense" are vague enough that they could cover a number of ideas many of which are in fact correct.

Edit: In some cases I suspect you yourself don't know what they're supposed to mean. For example, you list "alternative medicine". What do you mean by this. The most literal interpretation is that you mean that all medical theories other than the current "consensus of the medical community" (if such a thing exists) are "irrational nonsense". Obviously you don't believe the current medical consensus is 100% correct. You probably mean something closer to "the irrational parts of alternative medicine are irrational", this is tautologically true and useless. Incidentally it is also true (and useless) that the irrational parts of the current "medical consensus" are irrational.

Original thread here.