Expecting a massive sp@m wave, the filters were keyed to full. So far, there has been very few sp@m messages. Maybe, just maybe, the time off the net deterred the sp@mmers enough.
How much downtime? Sometime in 2007 the server dropped offline. That makes about two years plus a month or two without even a bounce - almost blackhole level loss.
To me, the payoff is worth the loss.