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I do see this in some communities, but not in others, so, people will tend to crowd into where the controls are loose, and again: that crowd will get bigger as Hive approaches and passes $1. I get what you are saying: maybe community leaders need to step up.

And we all can downvote if we run into someone clearly abusing the system.

We are also responsible for our upvotes ;) If an abuser gets no upvotes, they also get no reward. And then it is just a waste of time.

In general, I believe all scammers and abusers would earn more if they dedicated the same energy and mental capacity into actually participating in the community/communities with honesty.

They would in the long run ... but the desperate and the truly abuse-minded have this in common: they believe they cannot do that, that it will not get them what they need now.

If Hive as a community would take on really understanding the power of our upvotes and downvotes...

The community consists of individuals. We all are responsible.

Hive Power is called Power for a reason.