I didn't find anything from a short keyword search and a read through some of his other blogposts, but I would not be surprised if he were a republican in the "prefers a republic as a form of government" sense. (I'm one, and am very much not a fan of the US political party by that name)

Surprisingly neutral on topics regarding monarchy/monarchs, in favour of the AV referendum to get rid of plurality voting, and very annoyed at the electoral system for unilaterally changing his name on the voter rolls. (His surname is Q)