Kalshi's AML protocols – what are we seeing?

Been trading on Kalshi for a bit now, mostly small positions, but it got me thinking about their AML framework. They're US-regulated, which is a good start, but given the nature of event contracts and the ease of deposits/withdrawals, what kind of red flags are they actively monitoring? Are they mostly reactive to suspicious activity reports, or is there a more proactive stance on transaction monitoring for unusual patterns, especially around higher-value payouts? The whole KYC/KYB seems standard, but the actual real-time monitoring is where the rubber meets the road. Just curious what others' experiences or observations have been regarding their compliance rigor.