I wonder whether this 'negativity' is really negativity, or just well-meant criticism, testing and validating the idea, maybe even playing advocate of the devil. From what I've seen in the past years, the HN community is unlikely to produce a page with tons of similar 'Nice job!' postings.
Well the top post about a security flaw and the creator's superb response was what I was looking for to confirm some kind of semi-legitimacy before I post a link to facebook.
I think his service is kinda cool in a twisted way and I can totally see me building a little 'old school' homepage on it.
/edit: I did build a homepage: http://kybernetyk.neocities.org I feel better now ;)