http://tomwoods.com/podcast/ep-715-libertarian-musician-leah-mchenry-builds-an-audience-from-zero/

Click "popout" on the audio player, skip to the 12:20min mark, and you will hear the most relevant comment w.r.t. Steemit. Very insightful point about the importance of owning your followers and the danger of existing social networks. However, isn't there a problem if Steemit is making this data public, so that competitors can steal your marketing mailing list.