Facebook has already launched some features that are clearly related to this, such as the Recommendations product. Imagine posting "anyone know why this thing h

Facebook has already launched some features that are clearly related to this, such as the Recommendations product. Imagine posting "anyone know why this thing happened to me?" and being able to answer it in real time? Writing it out, that example actually seems counter productive to Facebook's vested interest increasing sharing, although I guess if the answer resolves as a comment it aligns incentives?