Per the meeting minutes of today's Ubuntu Technical Board meeting, the Ubuntu development community is looking at retiring this product. Really the only decision left is whether to shut it down completely or just put the project site in a read-only mode.
The Ubuntu Technical Board minutes note, "Due to radically decreasing interest from both Ubuntu developers (judging by the decrease of answers) as well as users (judging by the decreasing number of voters) the TB feels that it is time to end brainstorm.ubuntu.com and its regular review." Additionally, "the sole remaining maintainer (Stephane Graber) as well as the Ubuntu community QA team (who founded this service initially), represented by Jorge Castro and Nicholas Skaggs, all agree."
Jorge Castro then launched a separate mailing list thread about "sunsetting" Ubuntu Brainstorm. Castro's message was basically the same that the site is unmaintained with a poor design, user interest is no longer there, developer interest isn't there too much, and advanced users know how to contact developers and file wish-list bug reports.