Just the diffs. Finally!!
When you use the RSS Feed for a TechNet Wiki article,
on change you get an email notification with a link to the article history.
Clicking this link allows you to quickly go straight to what changed and make a judgment about any action you might need to take.
Additions are highlighted in green, deletions are in red.
What a time saver! Now, if only the TN/MSDN library had such a thing…