Proxy accounts + RC pools + off chain scaling (Openseed.) - Let users choose what goes on chain and what does not, and if they want it on chain they would need to buy/earn a premium account. The goal is to make free accounts just as nice as the real thing, and let users earn or get intrigued enough to buy a full fledged Steem account. Steem is yet to scale perfectly, no blockchain has, but we have at least a roadmap that will actually work if we buidl it.