I feel you really underestimate the importance of social pressure and of the potential of an advertising economy. The important distinction is that providing a functioning advertising system and removing the reputation benefits from bot up votes together removes the incentive to use bid bots and shifts the most viable business model for bid bot owners to either the 10x up vote of their own posts, or the I believe preferable 10x up vote of their own comments (as this won't affect trending and won't undermine the content part of the platform).
Your proposals taken together, especially the down vote pool make the opposite move more likely to occur. Remember, bid bots don't need to post and down voting bid bot users just for being bid bot users misses the actual abusers. So by implementing features likely to hit the own-comment up voters that leave bid bot owners bullet proof in all ways that count do in the end promote bid bots over comment up votes.
From a short term money flow perspective both may be equivalent, comment up votes don't disrupt trending and don't disrupt the reputation system and are thus by far preferable. And if you end up discouraging both, in the end this would likely lead to the big players without an intent to curate powering down and selling their stake, driving down prices.
I feel we want to keep as many big players on board for market risk sake, but in the meantime add an advertising economy that makes us less dependent on inflation all together and that can help us make abusing the voting system something that people do become socially accountable for.