Use the opposite algorithm: cull by lifetime value descending. Gets the bots and the viral celebrities!
(I know it's untenable, but I'd honestly love to see what the equivalent of https://millionshort.com/ for Twitter or YouTube would be like, where the top million contributors and all shares/comments about them were hidden. What would be "hot"? High-value niche-interest stuff?)
So if the bot-detection algorithm works by lifetime customer value, it would cull real accounts and leave the bots alone.