I don't mind the "clutter" and unevenness at all - that's what tags are for. I like some contributors more than others. I'm occasionally frustrated by the volume of MP3s and novella-length essays, but I chalk that up to my own mortal dread, not to some fault of the blog. Wm. Berger, Amanda Barrett, Mark Allen and Chris T (among a few others) write so compellingly that I don't mind reading their thoughts on things that otherwise wouldn't interest me. And it seems ill-advised to generalize about what "WFMU listeners" want, unless you're Andy Breckman.
I think of it like Metafilter - more quality crap than I could ever check in a lifetime, some less-quality crap, and some crap that might be someone else's latke. Quality control is overrated, IMHO. Good blogs (like good zines, back when) are a shotgun blast of jokes, experiments and ideas. I've been wrong before.
PS: Last year, I took one look at the old WFMU message board and decided to go clean my toilet instead. It looked like a bunch of in-jokes, bridge trolls and bullshit to me. Of course, not every board can be the FOT board.
~EmD (calmly waiting for someone to post dozens of links to the "My Brother and Me" music)