I just created an alternative Pinboard workflow that allows searching for pinboard bookmarks within Alfred. It can fetch data asynchronously, so there should not be delays during searches and the matching code has some fuzzy logic. Might come in handy for Pinboard users so I wanted to share.
NOTE: It requires Node.JS to be installed. Please get it from http://nodejs.org if you dont have Node.
pinboardauth username:TOKEN <- set access token (get it from https://pinboard.in/settings/password)
pb query <- search for query
pbunread <- items in read later