It's an imprecise measure, of course. They could just be a jerk
Now, what's interesting is that these patterns are *also* the patterns of serial harassment. Lot of interplay between those ideas, enough to consider cause v effect
Given that any systemized iteration (like machine learning) is driven by the quality and volume of metrics available and the metric-driven nature of social media, the application of ML to it is entirely natural, with the question being what it LOOKS like.
Not sure how we beat this one, honestly. But we kind of need to.