I thought it was some sort of misguided anti-cross-site-scripting filter...
--[[smcv]]
+
+> [[Fixed|done]] by passing the `MKD_NOSTYLE` flag to Discount instead.
+> Unfortunately this isn't bound by [[!cpan Text::Markdown::Discount]] yet,
+> so for now I'm hard-coding its numeric value. --[[smcv]]