It seems more fragment. I'm having to figure new way to do the stats. It's not like the community "tag" (if you can call them that) has intuitive name. You could tag, e.g., #marketfriday but it does not go into the community unless you post in the community. So, the post can be in the community or not even if you tagged #marketfriday. I think that's how it works.
If you post in a community, it remembers your last post and in your next post, if you are not posting into any community and don't switch out, it may end up in the community. Bit confusing.