Two Prediction Markets Shut Down Hours Apart as Kalshi and Polymarket Take 93% of Volume

AI Summary Trepa and Fireplace both told users to withdraw by Sept. 30. One published a post-mortem arguing crypto's active user base is far smaller than the industry reports. fulltext: 164 chars | fulltext source: rss-fallback | summary method: extractive Original: https://thedefiant.io/news/defi/two-prediction-markets-shut-down-hours-apart-as-kalshi-and-polymarket-take-93-of-volume Source: The Defiant