If I search for "The Logistics of X — Coal Mining", this Reddit thread is included in my search result:
https://kagi.com/search?q=The+Logistics+of+X+%E2%80%94+Coal+Mining&r=se&sh=mvcr-B-hWDeKlCCILDVHHA
However, if I activate the "Forums" lens, it no longer appears in the results at all:
Query: "The Logistics of X — Coal Mining"
Region: Sweden
So it seems that Reddit results are not included... But no that's not true. If I add "reddit" to the query, then a Reddit results appear. One of the ones is the one I was looking for.
Query: "The Logistics of X — Coal Mining reddit"
Region: Sweden
This does not seem right. The relevant result was not found when using the Forums lens. This is the exact case where I want to use the Forums lens, so it not working like I expect here seems troublesome. When looking for discussions about a topic, e.g. a video, I usually search for it with the forum lens bang to find discussions. But in this case, it actually hid the relevant result.