Very interesting, and likely outcome for Steem I think. The attention economy is going to be a bigger and bigger consideration as everything becomes ultra mechanised. As AI's and automated systems take over more of the work humans do, more people will make thier living from blockchain attention mechanisms.
Steem has the potential to completely disrupt and steal fbook/twitter market in the long term. I'm holding on to the 3.5 k I've accumulated through buying and earning for sure. In fact I'm buying more at the moment whenever I can afford to.