While the concept and code of @sadkitten may look simple to you, the final outcome is the result of many hundreds pages of brainstorming.
My disagreement is only with the method and the previous effectiveness from other attempts to do the same.
There has never been anything this thorough done aiming to do the same.
@SadKitten is using emotion and a fair punishment that strikes a balance between people preferring to slightly change their voting behavior instead of self-voting via proxy.
It is completely automated and contentious only to the extent of it's amount of SP. I personally believe it would show result with as little as 50 SP.
With this bot it is up to everyone with SP to decide what they think is an acceptable level of selfishness and push a % of their SP to be used efficiently to send a message where it make the most difference.
We tried to make @sadkitten as simple as possible to understand so it can be seen as some sort of soft-consensus.
Basically a statement saying.
"Too much self voting is fundamentally not acceptable" and enforced to this extent.