Discussions

Would it be a good idea for Evolver to add the ability to start a 'Discussion'? Where you could say pose a question or idea etc, or critique an existing idea among the Evolver community or specified group. I think Evolver, being a blogging site, definitely is more about expressing your individual ideas and epiphanies. But if people were able to go further and collaborate on ideas then there wouldn't be only the flow of new ideas being presented but only really discussed in it's isolated comment thread. A good example of this, could be found at We.riseup.net