The reason Hive doesn't get attention from big is the market cap. They don't want to connect with something it "worthless".
Because their way to think is " Invest in something that's already big, its less likely to fail".
And I think this will place a standard for the next years. If ETH will try to be Hive ( funny, if you think about it) and it's less successful it means nothing because it will have at that point a user base.
The only way is to copy a Reddit ( open source) style platform and make onboarding so fucking easy and user friendly, people can join in minutes and get their keys automatically in Keychain.
Then teach them over time with an email newsletter what hive is.