If I had an interesting link or picture or whatever that I wanted to share, I'll create a post on Steemit, write why I like whatever it is I like to add value, and then just publish it using Steemit (or busy.org). This way, if people really like what I had to share and voted for it, I get to keep what that post is worth and not have to pay someone 15% for something that can already be done in Steemit.
In other words, I'll just write a curation post.
Makes sense to me.