If I look only at how much time I spend working on THIS SITE, meaning being ON this site - that's an incomplete picture.
You see - I also spend huge amounts of time off site promoting my hubs that are ON this site.
Bookmarking, sharing, commenting off site, creating short articles for other sites that lead people to my hubs on THIS site.
I must think it's time well spent, I keep doing it. No I'm not making much money, but yes I keep trying.