Spam bot invasion
Well, we just need to be patient. As much as I hate spammers, wiki will run even with spam inside. Wiki is not the twitter where everything should be immediately up-to-date.
I personally monitor Recent changes in my rss reader, so I see the invasion within couple hours. But we cannot expect admin reaction time to be much faster than a day or even week.
This is not the first spam wave (though the largest I remember) which we survived.