Hi Lars - did not get you wrong at all and could not agree with you more.
I do provide low ratings to content now but I always include constructive feedback as my reason (that is, I won't hide behind anonymity of a negative rating).
However, where the material is not appropriate I choose to say nothing/do nothing and press Alert Moderator. I have started to get a little bit of a following and recognition on SCN of recent so I am more cautious in how and when I voice my opinions.
What I wanted to point out was: the points system doesn't help to reduce low-quality contributions.
You are not the only one who thinks this.. I'm waiting for Julius von dem Bussche to jump in here!
Probably now comes back to if we can't stop the eagerness of low quality what are constructive ways to re-train and change this culture with or without gamification. I see a large portion of it is desire to contribute so low hanging fruit is picked off quickly unless the moderator in that space has an iron fist and stamps it out immediately.
Regards
Colleen