most newbies do not share good posts, so I can see why they are not getting the reward they expected.

Because no one has the heart to tell a lot of people their posts suck and it's better to just avoid leaving negative comments that further discourage the user. A lot of people assume once they are onboarded and post, everything they churn out is $ in the form of hand me down votes. There's more to platform than just content dumping and most don't get the social dynamics that go along with the ecosystem.