As I recall, @aggroed estimated that after HF19 he expected author rewards to improve such that 93% of author rewards would be captured by less than 10% of accounts.

And who are those 10 percent, because if they are the top quality content producers it's clear that there is nothing wrong with that. It's the 10-90 rule of business.

This would also reduce the necessary number of posts required to make, in order to have posts to self vote, and those posts are not written by bots.

Such behavior is infinitely easy to spot and curtail, self voting is not a real problem and it hardly has a chance to be, especially when there are plenty of people who see it as wrong, agree on this and do something when they see it, just as they see beg voting, following or resteeming as wrong and counter to community.

My vote, as you can see, is insubstantial as a means of discouraging the production of content. I do not agree that it represents a meaningful force in comparison to votes backed by $1000's, or $M's of SP.

No it's not, it's a substantial means to express that you do not value such content, and in effect seek to discourage the production of such content, but at the end of the day its all about the person, because regardless if you get voted to oblivion it's your choice to stop creating such content, it's only as discouraging as you allow it to be.

It's obvious that a person with millions of $ of SP will have a lot of impact, that is the very reason, the very incentive that such a person would invest into that.