I think of communities on hive as just another way to segregate different populations on the Blockchain. Don't get me wrong, if I want to search for a particular type of content, it's much easier to do today than in 2018.. but that's not really saying much. Also, with the lead content creators/whales having their own communities, we continue to see the "merry go round" of curation dollars between the same users. Whether hive will become a major blogging site or whether another competitor will thrive is anyone's guess (Hive's UI options are severely poor for blogging...).
In this world, it's all about who you know more than what you know.. so maybe there's a chance for the future of Hive in blogging.. we'll see. I think the greater value is the transactions per second on a Blockchain. The DPOS platform will continue to be a large barrier to entry for new users. Nobody wants to pay to play, especially when so many others have a head-start that they didn't have to pay for.. just my thoughts anyway..
RE: My final few words and thoughts on communities on Hive