We had a last-minute standoff with Facebook over some permissions issues. That delay meant that we weren't able to start asking our customers far enough in advance, and we could not delay our launch of Amplify because it was tied to announcing our Segment.com integration.
However, towards the bottom of the landing page, you can see how we were able to use the technique to trend on LinkedIn back when we launched our core product a couple months ago. Unfortunately, in that campaign, we were not tracking clicks correctly, so we can't share any hard data. Anecdotally, several companies told us they came across Ramen through that campaign, which is why we were confident that building and launching Amplify was the right move.
I look forward to a day when we can provide a great case study backed by data :)
EDIT: Forgot "announcing" before "our Segment.com..."