Keep in mind that as Steemit (and Busy) grows, more users will be coming in who are not great content writers. I suspect posting links to content will become more of the norm and personally written blog content less so. But I also believe, as @craig-grant does, that communities of interest will come into play - similar to Facebook groups, but better - and so the distribution of Steem rewards will be more concentrated in communities where whales and orcas have personal interest (But then there is the whole issue of how bots will be used in the future as well - how many people will set up bots to only vote up the most potentially rewarding content, versus how many will use bots to vote up the people who they simply want to support).