Earlier quoted context omitted.
Easy to build out the platform, difficult to build out the knowledge base (especially since so many areas have already been covered on SO)
Sure, GH lags SO considerably on the size of the knowledge base, but I don't think that's very important since, due to the rapid pace of tech, content rapidly loses value with age (consider all of the jquery or flash content, or content pertaining to old versions of libraries or frameworks). What matters more is the rate at which content is generated, and I think GH has a pretty competitive story considering that peo…
I wonder how much of SO fits in the "particular repo" category? Not so much for my interests, but I imagine the chunk for popular web frameworks is huge.