It is, despite my initial assessment, to get an RSS feed of updates for this site.
For blog updates, try this feed: [Blog Update RSS Feed|https://wikis.mit.edu/confluence/spaces/createrssfeed.action?types=blogpost&spaces=MITLLCTF&maxResults=15&title=MIT%2FLL+Capture+the+Flag+Competition+Blog+Feed&publicFeed=true]