No, I do not know that, but I can confirm that google works very well with this script. On one installation I have about 10 questions daily, and all these Questions are added to the google index within 48 hours max.
I am linking to this page just very few times, but google automatically revisits the site often, as google knows that the content changes daily.
Would be happy to have this behaviour on my blogs at least. Hope this helps a little bit.