The original author of Popdex commented about how he sold the project, and it had taken this unfortunate turn.
Now, when you search for "popdex", instead of seeing Popdex.com in #1 as before, the popdex spammer site doesn't show up anywhere in the results:
It's cool that Google actively polices web spam. But unfortunately this manual whack-a-mole job (Matt was that you?) didn't entirely work, since the first result is now an extremely ad- and adsense-heavy page (even threw a popunder at me that got through Firefox's blocker) which simply mirrors the old popdex pitch text and points to popdex.com.
I would love to see exactly what that manual whack-a-mole interface looked like. I wonder how scalable in the end hitting a -zap- button on individual spam sites is though.