I agree. Immutability as a service will be in the background and front ends will adopt standards to hide content not belonging to that front end.
So accounts can store virtually anything, keep track of operations by using custom JSON ops without that data being seen on Steemit.
Right now, Steemit is more like a block explorer, showing us everything, but in time standards will be adopted to filter data better.
Imagine a public organization using the Steem blockchain to store minutes for example. Or saving public agreements/contracts from all over the world.
Endless possibilities.
This is great. The idea of Steemit being a block explorer is so true. If Steemit, Inc. steps up their game, they can provide a much better UX. What I'm coming to realize is that Steemit's front end development is horrifyingly bad. I don't see them doing anything to make this much better in the near-term. Thats why using other front ends (like SteemLeo) will become ever more important going forward as a filtering mechanism