One thing that Google is pretty good at is providing resources for webmasters to learn from. The regular videos from Matt Cutts in which he answers user-submitted questions are no different. It just happens to be this very topic that is addressed in the latest upload.
Question: Whenever Google detects a violation of its Webmaster Guidelines, can we expect a feature to be added in Google Webmaster Central where it could help the webmasters learn what the issue was?