I don't think cold and generic is necessarily a bad thing for github at the current stage of their evolution. They've already got about as good a reputation as they can possibly have among developers, and any logged in user never sees the homepage.
They don't need to market to developers anymore. Developers are going to be requesting approval from their bosses or purchasing managers to use github, and what the homepage needs to do is reassure the purchasers that github is a serious business.
They don't need to market to developers anymore. Developers are going to be requesting approval from their bosses or purchasing managers to use github, and what the homepage needs to do is reassure the purchasers that github is a serious business.