How to stop almost all abuse on Steem

Too often I have read posts about abuse and reward pool rape. Some users try to exploit Steem and get more than they actually deserve. I am talking mostly about bot upvote abuse. The solutions so far didn't really work.
With some users trying to exploit the dMania bot as well, I have to deal with it somehow. I want to shed some new light on the problem and make it clear for everyone where the actual problem is.

Why only bot upvote abuse?

I would argue that bot abuse is the only real abuse that exists on the platform atm. Every other post that receives high rewards was upvoted by some real person. That person invested a lot of money so that he is able to make those high upvotes. He can use those upvotes however he likes. If he likes to upvote his own comments to $200, that's his choice. It's probably not the best idea or a good strategy for an investor, but it's his choice.

It isn't any different when a low stake user upvotes his own posts and comments all the time. Nobody complains about that, but it is actually the same thing.

If some user upvotes content of the same user all the time (@haejin or others), it's not abuse either. Looks like it and a lot of people don't like that, but not really abuse. Some users with a high stake choose @haejin as their special friend and upvote all his posts. They have invested a lot in the platform, so they can do that. It's their choice. It's probably not the best thing to do if you are interested in the long term growth of the platform, but if they think @haejin posts are their letters worth in gold so be it.

People can use their own stake to fight that kind of Steem Power use or they can let it happen. Again it's their stake and they should use it as they see fit.