Like Alfred? Like searching for files in Alfred? You can draft new posts with a quick ⌥-Space (or ⌘-Space) then send them to Kiwi, or quickly browse for an image in Alfred and send it to Kiwi for sharing.
Joe also built Kiwi integration for Dropzone, LaunchBar, OS X Services, PopClip, Quicksilver, and a good ol’ fashioned Safari extension. It’s a good thing.