It’s specifically for discussing the process of editing topics on questions. We’re in the process of cleaning them up and this new feature is in very limited beta with a small group of people. We have the ability to revert and there are logs of everything that goes on…eventually those logs may be public. The point of the whole process is to make “questions for you” more consistent, make it easier to find topics you’re looking for and fix the spelling and capitalization errors in existing topics. The reason we’re not expanding this group right away is we’re working on coming up with a clear, logical and consistent set of guidelines on editing topics.
So far I’m been super-impressed at the effort and thought going into cleaning topics up. Things are getting much better, pretty rapidly: for example if you put relationships in your profile you will now be matched all relationship-related questions. Before you’d miss the ones tagged with “relationship”, “Relationships.”, “relationship.”, etc.