Community Server saw a major overhaul to the user profile public display page. One of these newer features is the Shared Feeds. Shared Feeds allow a user to put any feeds they find worthy of sharing into their profile and have them displayed, per the sites layout, on the profile page.

The screenshot above is from my personal profile on dev.communityserver.com - as you can see there are two feeds shown here, each with the latest posts from that feed displayed. The default CS theme displays 5 posts there, though that can be changed using the QueryOverrides "PageSize" property of your TemporaryRssFeedList control.
But really this isn't what made me think this was a good blog post. Allow me to put the Search Engine Optimized phrase here: Why does my Community Server 2008 Shared Feeds only show 5 feeds?
The answer, my friends, is blowin' in th...nevermind that.
It's simple, CS08 has a limit to the number of feeds you can share, not just that are displayed, but in fact share; the magic number being 5. If you try to save 6 items CS actually removes the 6th item from the list before saving, but never tells you this:
I learned this the hard way, of course; I spent an hour trying to troubleshoot why only 5 of my feeds were displaying even though I saw my profile save after entering 6 items - Moral of the story, always make sure what you thought saved actually saved (yes, only 5 items saved).