I'm thinking that people's lack of interest in Dreamwidth is because there's literally nothing over there. I searched for SPN comms and found only 2 or 3 (and 1 was a slash comm). But if people went over there and built things up, it could be a nice place to hang out.

The elitist DW users who don't want us unwashed LJ-ers over there can seriously go scratch.

I was a member of several Yahoo groups about 6-7 years ago. I find it VERY annoying to use. Cluttered and difficult to keep up with. From my POV Dreamwidth is a much better option.