Whether or not I agree with @danaedwards depends on when communities drops and what that looks like, how effective it is in keeping people around. As far as I can see, one of steemits biggest flaws is it's high turnover rate with users, because it's harder to gain users back once they quit and a lot of the great passionate people who indirectly added value to the coin have left the platform. I think a lot of this has to do with how it is organized and how finding a niche has bascially taken the form of some auto-vote club or top-down structure, rather than something like a sub-reddit that you like.
We still don't have a date on communities do we?