The Brainstorm has own comments so people can discuss the proposals and ideas presented. In practice through the fruitful and lengthy discussions tend to happen in talk.maemo.org since it's a place designed just for that. The result is confusing: double discussions not always connected and some frustration at the end.
Having different logins for Brainstorm (stock maemo.org login) and Talk (formet InternetTabletTalk) doesn't help.