I voted it down because, among rationalists, the value of an idea shouldn't depend much on the author (although sometimes the author's identity sheds more light on the quote). I mean, hell, Eliezer found an interesting quote from Piers Anthony.
It's a very bad habit to let your assessment of a person affect your valuations of isolated remarks to that degree.
I agree the value of an idea shouldn't depend too much on the author if we can evaluate the idea more directly. But I think the value of a quotation, a particular wording of an idea, is more dependent on who authored it.
If I were to use the Moldbug quote above in a positive light I fear how the reader would react:
(Since there didn't seem to be one for this month, and I just ran across a nice quote.)
A monthly thread for posting any interesting rationality-related quotes you've seen recently on the Internet, or had stored in your quotesfile for ages.