The transition to the second layer for content and curation reward shall indeed be done carefully, though I think it'll be an inevitable transition. Orrrr, we need to stick to social services for the HIVE chain only, but I rather see services to be on the second layer with each social network having its own token and reward pool. Twitter-like, Insta-like, FB-like, Reddit-like social media all have different dynamics and shall not be serviced from the same reward pool. We've seen too many issues with that in the past so many years.
I like to see the fast block times and chain capacity used for services that require fast database (blockchain) transactions. Maybe we shall lower the block time to a second or lower. That'll make real-time payment solutions (PoS) possible. I think HIVE has the characteristics of a general-purpose blockchain, but it is held back by the social side of things on layer 1.
For now, like you, I have hopes that we can control content well enough. That's the reason why I still continue curating every single day :)