Poll: Does Google's Disavow Tool Work?

A BlackHat Forum thread asks SEOs and Webmasters if the Google Disavow Tool works for you or not.

For those that have used it, has your rankings improved weeks after submitted and filing the disavow file with Google?

The forum is kind of split, with some saying yes it worked and others saying no it did not work. Which doesn't surprise me.

So let's get this into an anonymous poll and get a few hundred structured replies.

Forum discussion at BlackHat Forum.