I would built a front-end that tries to hide even more of the underlying blockchain than the current implementations. Instead of showing vote values, it'd just show vote counts and filter out the bots and voting trails. That way, I think you'd get a more organic valuation system. I would also build a recommendation engine similar to youtube or facebook, so you can get personalised recommendations.

This way, it'd look and feel just like a conventional social network, while still retaining all the benefits that the Hive blockchain brings.