The UTM seems like it should almost always be a default for most people, with the option to override it. For example, I'd like to set these four up one time, instead of manually everytime I add another URL.

• utm_campaign = Social Profile
• utm_medium = Custom Value "social"
• utm_source = Social Network
• utm_content = Unique ID

With three blogs and nearly 5,000 articles, this would be a huge time saver!