netmeg - 8:13 pm on Feb 4, 2010 (gmt 0)
Nobody knows for sure, because even if they do act, Google will not (and should not) discuss anyone else's account with you. What you describe goes on a lot (and there's even more sophisticated ways of doing it involving whole networks of computers) I suspect Google knocks them out when they find them. But they have to do a thorough investigation first (which is good - you don't want them tossing people out willy nilly)
Report it once and move on. They're not wasting your ten minutes by having the link up; you choose to report it.
I don't even bother anymore unless it's something really horribly egregious, and I haven't personally seen one of those in a couple years.