Doubtful the likes of Mark Zuckerberg has any fears of steemit as a competitive model, as they serve very different purposes (publication vs. social media) . Although the fact this post, which in all due respect is nothing more than a copy and paste of his words (no researched, point of opinion, nada) has gained considerable votes and monetary value ($250 to date). Just goes to show our beautiful platform is quickly spirally into nothing more than a re-post venue.