How do we consume less content and be more social/productive in a way that isn't concerned with profit?

There is no way to accomplish this return of the hobbyist internet without deep systemic change (that won't ever happen if we're honest). We can only hope to carve out our little corners by leaving the lurker mindset and actively participating in the discussion of our hobbies:
Document your struggle running that one RPG system as a duet. Post how to solve the bug you were having with Linux. Review that one book you just finished. Make a list of your favorite resources on baking. Contribute to open source.
Problem is, we can't force people to do it, we can only do it ourselves and hope to make an impact, and that isn't really effective...