[Analemma_]

> I don't think blackballing people due to statistical inferences about their behaviour is any better than harassment.

What? Harassment is active disruption of your life. Hiding you from someone's search results or "compatibility" list is not. It's not a great future, but let's have some perspective and not equate apples with oranges.

[zeveb]

Blacklisting people is active disruption of their lives, too. If it's based on statistical modelling, not actual misdeeds, then it's not even based on what they've done.