I was going to write about this but the post got a little too long. Here is a quick version. What if we make a dynamic cap based on unique upvoter per week. If the cap is calculated based on $5 revenue per unique upvoter and for the sake of ease consider all upvotes are self-upvotes, it will take the account+199 bots to make $1000 per week and +999 bots to make $5000 per week.
There are no perfect systems. But we can make some tasks easier and some harder.