As I remember, webchat was (is?) anonymous by default. Friendfeed is not anonymous by default. My point was that subtle changes in context seem to matter a lot

As I remember, webchat was (is?) anonymous by default. Friendfeed is not anonymous by default. My point was that subtle changes in context seem to matter a lot - eg. tumblr vs blogspot. I use tumblr and still cannot tell you what it does that blogspot does not - blogspot just feels heavy. So, even though friendfeed circles back to webchat, it might encourage entirely different kinds of things since people know each other by default and even know a bit of the social graph now.