[tomnipotent]

> You’re not even addressing the engineering costs though

This is a pretty silly thing to say. How could you possibly know what I'm addressing?

I actually have experience with all of these scenarios, and bar none Algolia has been the fastest, smoothest, bug-free-and-feature-rich-for-the-dollar rollouts for search experiences I have ever come across.

> including asymmetric costs for surfacing bad items in many use cases

Sure, if you're Google, Netflix or Amazon. For the 99.9% of the rest of the world where search isn't core to the business, there's unlikely to be any discernible impact going one way or the other, except saving money and launching faster.