Jeff, the work you've done with StackOverflow is amazing. That's why I'm a little surprised at this latest effort. It's quite ... underwhelming. The three biggest problems with forums: 1) Information overload. 2) Ugly. 3) Difficult to find what you're looking for. As far as I can tell Discourse has done nothing to address any of these problems. Pinterest has been such a success because it solved all three of these issues for images. If Discourse is going to as revolutionary as you talk, then it will also have to address these issues. Right now, I see it as pretty much the same as everything else and wouldn't recommend it to anyone. I'm sure you will write about Discourse more. I'll revisit the site next time you do.