Here's something that I find odd. If your site is over maximized and gets thunked by Google or they drop you in rankings in a noticeable way, you can have your site reconsidered.
I find it odd because even though it's a part of Google Webmaster Tools but it doesn't show in Google Webmaster Tools.
Just for reference, it's here: https://www.google.com/webmasters/tools/reconsideration