Not necessarily on the humming bit. Humming requires people that post., and as we know, a number of the old posting hands have moved up or out or have just diversified from bryce to other apps (or media) over the last few years. One would assume that as people moved up and out, then new people/users would move in to the forum to take their posting place, but with DAZ having their own bryce forum these days, I suspect that its sucking up a lot of the newer users - especially since they made bryce 5 a freebie. With each big bryce thing or release (free or otherwise), the forum that had the biggest spike in threads being posted was the Daz forum (apart from one day when AS singlehandedly posted about 10 threads here). The others had smaller spikes. 

Now that more and more of the software companies are having their own forums, it'll be interesting to see what effect that has on the various big user based sites.

Dreams are just nightmares on prozac...
Digital WasteLanD