High risk. The primary trap is the reliance on a specific third-party tracker (xtracker) and the rule that deleted posts only count if captured within ~5 minutes. Furthermore, the distinction between replies that appear on the main feed versus regular replies is ambiguous, which can lead to discrepancies between user perception and official resolution, causing disputes.

Highly exotic. Betting on the exact number of tweets a public figure will make in a designated week is a highly niche, entertainment-driven market. Ordinary people do not typically ponder or track this specific type of data.

Predicting the highest daily temperature at a specific weather station in a specific city is a highly granular and mundane topic. While not typically pondered by the general public, it is a standard weather-related market format.

While weather forecasting is a standard objective data prediction, betting on the exact temperature of a specific city on a single day is relatively niche. It mostly attracts specific traders interested in meteorological models rather than the general public.

The market prices '26°C or higher' at a relatively high 20.5c, whereas mainstream weather models (like Wunderground and AccuWeather) forecast highs around 21°C-22°C with likely cloud cover or light rain for April 22. Reaching 26°C+ is highly improbable according to current meteorological data. This divergence is likely driven by early speculative capital or overestimation of local heat anomalies.

Weather prediction markets are relatively common on certain prediction platforms, but for the general public, forecasting the exact high temperature of a specific city (Busan, South Korea) on a specific date remains a rather niche micro-event lacking broad public discourse.

April 20, 2026 - April 21, 2026, the price of the 21°C option surged from 24c to 61.5c, while the 20°C option crashed from 24.5c to 0.05c, because real-time daytime temperature in Busan definitively surpassed 20°C and plateaued around the 21°C-22°C range. April 19, 2026 - April 20, 2026, the price of the 23°C option plummeted from 25c to 10.5c, and the 24°C option dropped from 14c to around 1.6c. The reason is that as the resolution day approaches, updated meteorological models downgraded the expected high temperature, largely ruling out the 23-24°C range. April 19, 2026 - April 20, 2026, the price of the 21°C option rose from 24.5c to 34.5c, as the downward shift in the forecast center made 21°C one of the most probable outcomes.