And speaking of LaunchBar 6 actions and extensions, I stumbled across a few really great ones on the Objective Development forum.
This one for searching and viewing you Pinboard bookmarks right from within LaunchBar is awesome.
And this one that hooks in with the FeedWrangler API pretty much turns LaunchBar into a full-blown RSS reader with the ability to browse all items, send a specific item to Instapaper (or your read later service you have hooked up with FeedWrangler), and to mark the item as read.