I think that just the information sharing aspect and monetising and incentivising people to produce original content is only the tip of the iceberg. I personally see already and expect a lot more of the use of this platform as a marketing system. The word 'forum' is from the latin and means marketplace, and the ancient forums included both vendors of all kinds of goods and services as well as ranters on soapboxes talking about their favourite subject. This aspect is something that I can see advancing quite quickly with Steem, since it would just take a secondary blockchain focused on tracking orders, payments and fulfillment of orders, integrated into the system. All the necessities for marketing are already here.