Text of sample Status format posting. Note that the title, category, and tags are not displayed in the entry for this post that appears in the main blog page, but they are shown on the page devoted to this post. Also note the default “avatar” image, which was added automatically in the main blog page entry for this post. This avatar image also shows up in my assorted comments to various posts. The default avatar can be changed via the Dashboard’s Settings, Discussion screen.
What http://codex.wordpress.org/Post_Formats says about this format:
status - A short status update, similar to a Twitter status update.