Frankly speaking a business model on broken code. Curation curves are complex for a normal "facebook"+twitter user whom they want to onboard here.
And I think very few has has interest in promoting the manual curation and every effort is done to penalize the authors only though claimed backbone of a blogging system but I doubt in practice.
Yeah, in curation area we are still running Ned's code. Let's hope HMT won't make same mistake