A flat organization cannot rapidly scale. And sometimes there might not even be a consensus. Having an overriding vote, albeit rarely, is crucial to break deadlocks.
This is not to say that flat organisations are bad. But I don't think they are a particularly good fit for the scale YC companies work at.
This is not to say that flat organisations are bad. But I don't think they are a particularly good fit for the scale YC companies work at.