I have been wondering the same thing. What changed my mind was a closer look what's being posted here. In two hours of browsing (inside and outside my feed) I generally find one or two posts I find really interesting and most of them are simply cool pics (and, when I go back to the posts I've upvoted, I find out that most of them are still worth less than 1$). Most of what I find interesting isn't posted here, and I'm pretty sure my posts are not interesting for most of the community (and thus they get skipped).

So, maybe it's not a big lie, it's just that we are not interested in it, and the community is not interested in what we post.