In the recent past (a few months before the creation of this task) the RSS feed at blog.wikimedia.org presented the full article. As of late it only shares a short description. For better syndication of content the WordPress setting should be changed to allow full articles in the feed.

Unless the Wikimedia blog uses some alternative configuration this setting can be changed in the WordPress Dashboard in the following location.

Dashboard>Settings> Reading> For each article in a feed, show "Full text"