A properly working social network is not competitive, but natural.
It is based on actual, real, genuine interest in the content/people.
For example Facebook groups (even the smallest Facebook groups, for example with a few hundred members), and YouTube.
The approach is very different on the Hive blockchain.
Most people focus on the monetary aspect so much that they forget (do not even care) about the contents. Even often as a so called content creator/author, let alone content consumers, which are currently only a very small percentage of the Hive bloy users. Most Hive blockchain users focus on their own posts.
Most Hive blockchain posts are ignored/overlooked because of the above mentioned fact.
This is how people ruin an otherwise technically revolutionary platform.
I agree that would be the ideal, but it's not necessarily the reality.
You address something important in pointing out that Facebook groups work this way. It was always my hope for Hive that communities would get more traction... it makes more sense to have someone join a gardening/writing/gaming community on Hive than just have them "join Hive."
People typically don't say that they are "on the Internet" or "on Facebook" anymore... it's about what they do and belong to within those contexts.
One of Hive's weak points is definitely that it doesn't have much of a mechanism to make its content of interest to people outside Hive's walls... and even when that does happen, it's a complicated and even daunting process to get an account just so you can engage with someone's content.
And so, we end up with this current situation where most are creating ON Hive for people ON Hive... no external expansion.