I'm really happy to see YC putting attention toward the (increasing) market failure around media quality. It's a serious problem, with IMHO imperils governance and stability worldwide.

I'm exploring a way to improve this dramatically, and fairly rapidly; essentially creating a stronger market for trust & quality, with resulting ranking rewards from FB, Google et al. If you are interested in learning more and perhaps being involved, let me know (yc@aviv.me). Experience with news organizations, partnerships, platform companies, moderation systems, or machine learning are all especially helpful.