My comment was based on Mark's statements. The actual video is at [1]. Scroll forward to 1:26:30. I'll try to quote the relevant parts verbatim:
Reporter: "Do you actually get your friends contact info as well. is any of the data in a format that can be easily imported?"
Mark: What we are focusing on today is your information...not your friends information, because that is not your information..
That clearly seems to me like they will be scrubbing not just IDs but also email addresses of my friends when I download my data. So when I take my data to a new service, I am not taking my friends with me. This means any new social network that I want to export my friend data to still has to go via the Facebook API. And what's the catch with that?
What Facebook doesn't allow anyone who uses their API to do is use data you get from them to target ads to users even if the user consents.
See their terms, 9.6, for developers:
You will not directly or indirectly transfer any data you receive from us to (or use such data in connection with) any ad network, ad exchange, data broker, or other advertising related toolset, even if a user consents to that transfer or use.
Further, the new social network, a Facebook competitor, would continue to be dependent on Facebook and any future changes to their TOS which they are forever subject to.
A bunch of people thought that with the user now free to export all their data and import it into a new social network, platforms competing with FB, who want to source data from FB, would be able to do so without consenting to Facebook's terms like the one above and permanently free them from future changes to Facebook's terms. Clearly that is not the case, since using the Graph API means you are still subject to these terms.
I was not making any statements about Facebook's confidence or lack thereof. And sure there is no credible competition at this point, but that's my point. Competition is good.
Finally, you said:
It was rude, and deliberately so...it is my duty to call attention to this situation. A downvote is not sufficient.
If you think that calling attention to factual inaccuracies requires being rude, I think you have misjudged HN as a discussion platform and, in my opinion, misunderstood the general rules of conversation as well. I'll leave it at that.
I never implied that people "really want to leave Facebook". May be you should stop conflating opinions expressed in other comments with mine.
[1] http://www.livestream.com/facebookinnovations/video?clipId=p...