It's also reminiscent of tracking payment fraud. Algorithmic approaches are potent, but they're not a stable fix when your problem is adversarial and open-ended

It's also reminiscent of tracking payment fraud. Algorithmic approaches are potent, but they're not a stable fix when your problem is adversarial and open-ended - scammers have nigh-unlimited time to hunt for new angles. As I remember it, that's a major piece of what got Palantir started - PayPal's fraud-fighting system tracked known attacks algorithmically, but they needed visualization tools to locate new attacks. That said, there's definitely an argument for attacking the ease of creation and longevity for bot accounts. Payment scammers are an endless problem because they profit on individual wins; bot networks need some sort of protracted presence to influence people.