Pinboard is a (newly) supported Channel for IFTTT, so a recipe for Pinboard -> Wordpress is simple to create. https://ifttt.com/pinboard
You can do a lot of hacky stuff with IFTTT if you play with RSS too. For reference, I made a Reddit image auto-downloader in IFTTT by using RSS and Yahoo Pipes awhile ago: http://minimaxir.com/2013/01/if-cute-then-happiness/