I think Steemit is just so new that it's been largely undiscovered so far. It seems natural that it would be overwhelmed by Bitcoin fanatics because such people would be early adopters of a blockchain-based social network. I think the reason Steemit hasn't been discovered yet by other content creators is that its fundamental concept is a little odd to grasp at first. Most average Joe's who aren't tech savvy don't get what makes it unique - but the blockchain enthusiasts do.

Gun people will get here in due time. We need early adopters like you!!!