If you're "Social startup of the year" it doesn't matter if one post appear to some followers 100ms later than they should be. That's latency, not correctness.

If you're "Social startup of the year" it doesn't matter if one post appear to some followers 100ms later than they should be. That's latency, not correctness. I think even "social startup of the year" cares that the post shows up at all, is attributed to the correct author, isn't corrupted somewhere and so on. Data correctness/consistency is about making sure that the data isn't in an inconsistent state.