As someone who hasn't really used tumblr in years I'm not personally feeling the pain of the new announcement. In fact, I've kind of eagerly been looking forward to the next fannish platform, hoping I'd like it more than tumblr (and praying to anything that will listen that it will have some form of moderation controls, which tumblr sorely lacks). Unfortunately even with the tumblr news, with nothing standing by ready to take over as the new fandom home, I have a feeling this is going to be an LJ-like end where fandom slowly splinters in a bunch of directions for years before people settle in a couple different places, one of which will be the most successful at gathering new fans.
Anyway like I said: I'm skeptical that fandom will settle back on Dreamwidth, but while things are a little more hopping around here (though I know there have been people faithfully using it this whole time, I have been keeping track somewhat) I might use it as an excuse to write out some posts I've been thinking about that don't really work on twitter, which is where I live most often these days.
I'm making a bit more of an effort to leave comments too, so surprise, I guess, if I'm suddenly talking to your here (again?).