This thread, I guess?
Colorado bill prohibits insurers from using “discriminatory” data, like social media and credit scores, to set rates
I would much prefer insurers were prohibited from using that sort of information from data brokers at all. In fact, I'd rather they took a prescriptive approach, and limited them to using a short list of specific, verified information that they have explicit reasons for including. Nothing else.
But I would LOVE to see what they're using, and how the regulators would go about analyzing it. It's usually a pretty opaque process without a lot of human intervention in the initial stages, so it would probably take a bit of detective work to tangle out actionable discrimination.