I agree on most points.

I also consider it good behavior to try to read more than you write.
I mean, this whole system doesn't work, if people only put out content, but don't curate.

I also think, that striving to make your own vote more impactful (as in getting more HP and not spending all rewards) is a sign of good will.

People, who try to give out more than they take, will keep this ball rolling.