Look at Steem to see what happens if nobody fights abuse. We all left them to it. We have the problem that if we leave abuse control to a few services then people complain it's centralised, but then individuals tend to be scared to flag anyone. If we do flag then we get called bullies. Given the small size of the communities it may be viable to act on each case manually to try and persuade them to act less selfishly, but some will not listen. Hive is inherently not 'fair' as some big accounts will look after themselves and their friends, but we can do something to deal with small cases before they spread.

A certain user I have spoken to about this still does not get how it works and commented on this post :)

The fact is that we can generally see what people are doing and we are free to reduce their rewards if we want to, for whatever reason. That carries risks of retaliation, but I think it is worth it.