So far I've only read comments that have a strong tendency towards the destructive or even pejorative end of the spectrum. I think that's unfair considering all the effort they are putting into this.
Having said that, I'd like to know what distinguishes this from e.g. Facebook in the long term. It's easy to put out a manifesto and pledge that you are never going to do bad things. It's also easy to come up with a vague theoretical business model that doesn't really say how it will work.
Let's assume they succeed with this – there is nothing that enforces these early statements anymore and soon investor pressure will lead to an outcome similar to the established success stories.
That's why I think you have to be much more different if you really aim to make a difference at scale.