Google is presently looking at the gambling search results. It is the cesspool of spamdexing. If they can clean that crap up, they can clean all the results.
They are dealing with things that fit certain criteria.
It is a very, very good time to submit, and it is alot more effective than complaining to the sites anymore.
There is a good chance things will get removed, origins recorded for filtering and all kinds of good things.