It's not about the blockchain, it's about the users
I have had similar thinking recently. I don't see what's stopping people from collaborating and doing projects to bring out to the world outside Hive to bring in interest. Or why we're not even advertising in some mainstream places.
It's actually not that easy to make visible advertising. The Hive community is doing a lot of work to attract people over Twitter or other networks but not many actually join Hive.
I don't mean tweeting about it. But like advertising through Youtubers for example.