"Why does my blog look like complete crap?"

Yeah, I wondered, and tried to rebuild it on my laptop, where it complained a lot about a missing Text::MultiMarkdown::markdown function...

And yeah, correct, it wasn't to be found... apparently, the MultiMarkdown functions had moved to some new place, and ikiwiki for Debian knew about this... except that required installing a new package that I hadn't noticed before (libtext-multimarkdown-perl).

But hey, now it's installed and things look better already!