Thanks to François Dongier, who gave a fairly insightful discussion of the pros and cons of Imindi in the current stage. I think that it is definitely worth of being shared to more readers. Here is the link.
In particular, I quote the conclusion section of the article in the following.
"Lost in the ocean of distracting facts and contingent news, thoughts are rare and indeed very precious. There is an important sense in which they are what really matters to us, as an essential aspect of our human nature. They are also important in a more "practical" sense, playing a central role in the economy, as the major source of all the inventions that lead to new products. There are now new web applications like Imindi, Primal Fusion and, maybe to a lesser extent, Twine, that really focus on thoughts and try to isolate them from the stream to make them more visible and reinforce their efficiency. My view is that such applications will have a great impact on how the web evolves.
I personally find extremely attractive the fact that this project is very ambitious. It's got the nice A.I. feel that you also find in projects like Wolfram|Alpha and Twine. It's not just an ordinary web app: it wants to be disruptive and revolutionize the way we communicate and think together. Maybe it will fail, if the problem of efficient thought-modeling and thought-merging turns out to be too complex for the current technology. But it certainly looks worth giving it a try."
UPDATE: here is rancois`s thoughts on Imindi. A graph itself is better than 1000 words.