The last time Matt Cutts of Google posted something at WebmasterWorld was over three years ago on January 4, 2011. He broke his silence there yesterday posting in a private member-only WebmasterWorld thread.
Why does this matter? I am not sure but he was the infamous GoogleGuy at WebmasterWorld for years and years. Not posting there, which was like a home to Cutts, for three years, is a pretty long time. Of course, Matt is busy helping webmasters at a larger scale with his videos and blog posts.
What did Matt post? I won't share all the details of the thread exactly, since it is a private thread. But I will say a large site (which was unnamed) accidentally blocked themselves with a robots.txt file and was looking for ways to get reindexed quickly. Matt suggested to use the Fetch as Googlebot feature to expedite things.
Here is a screen cap of what Matt wrote:
So the tip is useful in that we know Fetch as GoogleBot can expedite some indexing.
Forum discussion at WebmasterWorld.