So I tried it on this BBC article (a current top story), and this /r/Hearthstone post. It did pretty well. I won't copy-paste the whole reply, but here are some excerpts:

The post you've shared describes a series of recent climate records related to temperature, ocean heat, and Antarctic sea ice, and their concerning implications. [...] The trustworthiness of this information depends on the credibility of the sources cited and the accuracy of the climate records mentioned. Given that these are attributed to credible individuals and institutions like the UN, they likely hold a high degree of trustworthiness. [...] A pattern of increasing intensity and frequency of extreme weather events is consistent with what scientists expect from climate change. [...] However, for a comprehensive analysis, it would be prudent to cross-check this information with authoritative climate research bodies, like the Intergovernmental Panel on Climate Change (IPCC), National Aeronautics and Space Administration (NASA), or National Oceanic and Atmospheric Administration (NOAA).

The post you've shared appears to be an announcement about an upcoming expansion for Hearthstone. [...] The new expansion, named "Legendary Titans and Keepers," seems to introduce some new gameplay elements, including the "Titan" keyword and "Forge" keyword. Assessing the trustworthiness of this information can be tricky without an official source. Ideally, the announcement should be verified on Blizzard Entertainment's official website or through their official social media channels. The details mentioned, such as the gameplay mechanics for the new Titan and Keeper cards, as well as the new Forge keyword, are specific and elaborate, which might lend some credibility to the post. [...] If this information came from an official announcement from Blizzard Entertainment or a reliable insider, it would be newsworthy content for audiences interested in Hearthstone or gaming in general.

So it guessed correctly in both cases and suggested where to fact-check the info to be sure.