I totally agree. At the very least it's safe to say that you would happily upvote tons of Tim's content and were he to post it to Steemit, he would be able to capture much more value than the original $4. In fact, maybe in the future people will give their books away for free just so that they get your likes on Steemit! It's hard to say just how much value can be conveyed through "upvotes" because it's never before been possible to convey ANY value through them. Great post!