I'm not sure how all this is calculated or it is possible but would there be someway to differentiate accounts that are auto/bot accounts, be it bid bots or autovote bots/proxy voting and introduce some sort of tax to it?

I think this is not easy to do. Methods could be devised to spot the current voting patterns of auto-vote bots, but those could be overcome easily by algorithm changes by the vote bots, leading to an arms race between the two sides that goes nowhere and just wastes time.