Yeah, Tumblr was great for when you just couldn't brain any more and needed something pretty and/or interesting to look at without any interaction required. I'm already way more active on DW than I probably ever was on Tumblr, and I've barely managed to make a single post of my own. My FB is full of people who I know in real life, most of whom are middle-aged and very straight(tm). I like most of them but I can't talk in front of them.