Dear @timcliff,
It is a really good sign that when these excesses happen, they are immediately adressed by witnesses such as you and @lukestokes. It shows to what extent the witnesses care about the platform and their perspective on how things should work. That is really awesome to behold. This system works and that is promising for the future.
However, on the subject, I think your requirements will probably never be met more or better than they are today, with growth of user base I'd expect the viewpoints to shift away from these requirements instead of towards. And the suggestions go towards monitoring/controlling unwanted behavior. That is the exact governmental approach many on this platform do not appreciate either.
Personally, I would opt for a different approach, which I've posted here last week. I think it would fix these kind of situations entirely and elegantly. But hey, I'm only 6 months on this platform, don't have much stake invested, so this is just my 2 cents.
Your proposal is interesting, but unfortunately it would be way too difficult to implement a system like that which did not introduce even more avenues of abuse and unfairness.
I'm afraid you are right. A handicap I often have: when I come up with an idea, I'm already biased positively towards it and sometimes fail too see the disadvantages. That said, many thanks for having taken the time to take a look at it. Certainly appreciate that!
https://steemit.com/downvoting/@thatanimesnob/an-easy-way-to-find-and-eradicate-self-voters-like-checkthisout-and-moses153