I believe that communities will be similar to Reddit, from what I understand. It might be supposition on the part of some but I believe I was reading a post by the developers who talked in that manner...in fact, it cited Reddit and their userbase...so I feel it will be similar...

It is hard in the continually moving stream to get noticed. Communities will eliminate that completely.

Steemit being the defacto news source for people would be amazing...you arent the first person who mentioned that to me...it is a wonderful idea.