The challenge is that every fruit must have its seed. (Even seedless varieties are artificially created by labs which then themselves can be viewed as the seeds, but I digress..)
Nothing of value to others is truly created in a vacuum. It must have some system of re-uptake, of value being conferred back to the creator or else it will never repeat.
Ads are one potential way that can be accomplished, but as much as we hate ads we can't just expect them to go away and leave the "content" alone. We have to replace them with some other superior way of remunerating the creators.
I wish flattr would have took off as a service, that sort of low-friction idea seemed quite promising.