It would be nice to have some example and documentation regards how to use this extension..
Topic on Extension talk:Answers/Flow
That'll be worked on, but as it stands right now, most of the source code is still based off Wikia's extension, thus it hardly works on any MediaWiki installation. The current status of this extension's development is mostly in the planning stage as to what we're going to improve and rewrite off of Wikia's old source code.