I hang out at several boards (this is the only music-related one), and participation at all of them seems to ebb and flow over time. The only difference I see between the more active ones and this one is that it's relatively polite here. I like that.
There's only so much one can say about our favorite style of music before it gets redundant. Other than specific new releases, just about any topic or observation can be found to already exist if one uses the search function. Truly original topics get a flurry of activity, then fade out, which suggests to me that the actual audience of unique visitors is small. I wonder if the total number of hits you're seeing, Mike, doesn't include a large percentage of bots? Any way to know?
Oh, and nudity, more nudity. Can't go wrong with more nudity.