The id is extracted from the email/openid.
I saw the post but I would not categorize that as spam. It is
classified as a tutorial, it does not replicate the original post, it
is a summary and a link to it and it seems that it wil send traffic to
the other site so it will be beneficial to them as well.
If it is automated (I doubt that) it does a good job so far ;-)
best,
Istvan
--
Istvan Albert
Associate Professor, Bioinformatics
Pennsylvania State University
http://www.personal.psu.edu/iua1/