[ipaddr]

Because their main business is taking content ranking it and charging you for it. This allows them to discover sites cheaper in a more targeted way. It increases awareness of kagi. It's a win/win idea.

Don't mistake Kagi for something it's not. You are still the product. All of your data is feed into the system (what you search for, what you rank, what you filter etc) and used to sell others.

[dewey]

I would not really count using a paid, relatively expensive service as "you are the product" which is usually used if a free service is subsidized by selling access to the users to a third party.