Why Kagi launched "no use, no pay"

I'm really curious about this because it actually incurs some interesting possible customer service issues. Say someone signs up, then usage lapses for a while. Then they use it. Bam they're charged. Will they remember that they signed up? Some of these edge cases are defined in the article but remain unanswered. It sounds like the team at Kagi didn't even think about them, which is interesting. Still I'd like to know the answer.

Login tokens expire long before - so it'll require an explicit login, before you present as a returned customer.

Hey, Brandon here from Kagi's marketing team. Happy to answer this! It's certainly something we thought about, but have yet to have any issues from customers "forgetting" that they were signed up to Kagi since launching our fair pricing policy. Some users could forget, and "accidentally" use it but I believe that will be incredibly rare. If the customer is confused by this, we are more than happy to assist with reimbursement or to cancel their account etc. We're very open with this and want to take care of our customers as best as we can.