I used to get no results all the time, and it was very useful! Unfortunately, that seems to be happening less frequently for me. In verbatim mode with personalized results off, I noticed Kagi not respecting quotes for phrases. Google will ignore my search parameters intended to reduce results for free, so... :-/
If you have specific examples, I think kagi team would like to hear about, I would suggest that you open post them in support website [1] and I'm sure they will look into the details.
Yeah more and more Kagi seems to be trying to give me the same trash results Google did while ignoring parts of my search parameters.
I have never asked for or even wanted "personalized" results, because on Kagi and everywhere else, personalized is shorthand for "very very poor guesses". It's very frustrating.
Turning personalization off just turns off custom redirects and any website ranking adjustments you've made. That's really the only personalization we have for results.