So, I've just looked at this and I love the idea behind it. However, I've got to be brutally honest and say that I think through your quest for the whole 'node based discussion' you've gone too far into making it more difficult to use than normal forums. I've done a lot of systems documentation in the past, and this suffers from the classic problem of a lack of basic, quickly readable 'surface' information. You're forced immediately to do a deep dive into stuff, and rather than it being better than a normal forum, it becomes way more time consuming to use and just plain confusing.
Basically, I think it just needs some big changes to how you show the basic stuff. My suggestions would be as follows:
- Highlight the current node you're looking at. Make it a green dot or similar. (this is an absolute MUST)
- Show the alternate nodes you could have jumped to from the last node (I'd suggest that they be fainter/slightly transparent). It's needlessly time consuming to have to jump back to see alternate answers to the same post.
- Label the nodes with their subject. You need to know roughly what you're looking at straight away - do the first three words or something for subjects. This might spread stuff out a bit and make it looks slightly messier, but the whole point of this is that I can see more naturally how conversations are structured - I lose that if I have to hover over everything.
Whilst it's a big change, I'd also suggest having text on the left and the node-tree on the right. Currently you've got small posts, but if you end up with lengthy ones (like this!) you'll lose the one thing that makes Agora stand out (the fact you can see where your entry fits in the tree of stuff) by pushing it all the way down to the bottom underneath the text. Having the text in a scrollable box to the left hand side will help a lot.
Honestly, I love love LOVE the idea, but it's got to be more (or at least equally) efficient than a normal forum for it to be useful. Sorry this has been such a critical first post - I think it's a great and I definitely want to see it come to fruition. I honestly believe it could become the new forum standard if it was made easy enough to use - I'd certainly deploy it across my sites if it did!