That is very untrue, the network, at this time is growing enormously at a very rapid rate. this is because there is an influx of new users, "the gospel" of limewire software, and the shutdown of many p2p apps. this left people to look for alternatives.

But to be on topic, the spam filter is being worked on.. dont quote me on this nor hold your breath, but it will probably be released soon. From what i gather, the final bugs are being knocked out.