Landsat 8 Collection 2 anomalies in TIRS1 data (from QA_PIXEL and ST_QA) was recently closed as off-topic, but as the google-earth-engine data ingestion lead, I'm very interested in seeing such questions - it's hard to tell in some cases whether the problem is with EE itself or with the data. Even if the problem is about data, keeping these questions in the same GIS site seems convenient to me, as people are likely to search it later.
I now know there's also an Open Data Stack Exchange, but it covers so much that keeping GIS data in the GIS SE seems preferable to me but in cases when Open Data is a better fit, can I ask to close such questions with a comment about using Open Data instead so that users would know what to do?