It seems like you're missing the point here. The "dark matter" developers aren't being prevented from being internet famous by some mean old clique of tech bloggers that won't let anyone else in. They are the ones who don't care at all about being internet famous, don't write blogs or tweets at all, and don't know or care what other people are blogging and tweeting. They just write code that solves business problems and then go home and do non-tech stuff.

This is not a problem that needs to be solved, it's just something to be aware of.