Articles and Descriptions are used to add additional information text to the Release Page.
Articles can be used for text information but it will also support any HTML code so can be made use of for links, formatted text, and any additional information.
Descriptions are generally used for a product’s blurb or sales notes. They differ from articles in that the content feeds directly into the Release's metatags.
Therefore it is advisable to use Description to include the key information about a release and an Article to include additional text that can be edited or deleted with great ease.
Format descriptions are for information pertinent to only that format and are meant to be bullet points.