I thought the same, and still get annoyed when I get "no results" back, but almost every time when I then try to use Google I get nothing but totally inapplicable results I had to sort thru. Google made the news a number of years ago about this, they found people really don't like to see "no results", so Google silently drop terms, even if they're quoted, when it can't find enough results otherwise.

Primarily I've found the source of issues like this are the lack of indexing anymore, and it's not just Kagi. A lot of tech discussions now have their own Forums or Discourse that are poorly promoted and (seem to?) have a robots.txt that says not to index them. I often have to manually go to those sites to run searches and find results from years ago. Also a lot of prohects keep moving away from Forums or equivalent, and using Discord, Matrix, or IRC, none of which end up searchable. No one is going to use those the same way no one is going to call you on the phone, and everyone just has to keep asking the sme questions if they do use it, so I always take that as "we don't support this software/product anymore" and rarely expect to find anything technical about it.