The problem do forsee is that the attention span of people is decreasing. I do see it with my kids!
Steem really does have all the points you were referring to. I do hope that a lot of the Steemians, who are registering, will write about the most diverse topics! The more the better! It does gives everybody a platform to spread their ideas and to interact with each other!
While the technology is great, we the users will decide how it will be used! We just need to make sure that we cast our witness votes correctly! Cause they will need to adjust some things in the near future, otherwise a great platform could be lost by the greed of some users!