Thanks for the post. Pretty technical for my taste, it felt like reading another language. But the little my small mind could grasp agrees with your proposal of a diminishing return (is that even the right term? lol) on repeated votes for one account. Sounds like a good idea to me. Reducing the voting power from 2% to 1% also sounds good to me. 100 votes worth nothing are worthless with either 2% or 1%. I rather have more interaction.
But the biggest hurdle is the UI: Even though I love the clean look of Steemit, it is rediculously simple for such a complex website. I mean at the moment posts get lost in the clutter after a few hours and are practicaly worthlesss then. That is a huge bummer and the biggest demotivatinal factor.
I am a professional content creator for ten years now. When I write a tutorial I write it to last. Maybe for years or even decades. Steemit doesn't support this thinking at all. On the contrary: For the first time in my life I ask myself how can I create an article with the least possible effort. Just because the system pressures me to do so.