I think you're misinterpreting. We're not badly reacting to criticism, it's just surprising seeing that the tone here has seemingly changed from being one that used to be receptive to and encouraging of rapid progress and user-driven product development. The reason we launched these features to the broad audience was so they could be used and we could have feedback submitted. The reason I posted the blog post here is because this community is one that likes to try out the cutting edge things that are out there and frequently tend to post useful feedback.
I felt like the tone of the earliest comments was overly harsh, considering the above. This was always intended to be a soft-launch. I thought it would be a good idea to involve the HN community in it. Sincere apologies if this wasn't communicated better. Lesson learned.
Please, we want your involvement and your feedback, but in no way was this launched prematurely. This is the way we've always operated and we're proud of the product we've been able to develop because of it.