Yep, we should be able to make a registration without the website. But you will need to code all the algo variations in your UI then. And explain that to the user. Otherwise, users don't have much choice than to obey whatever algorithm the Client dev chooses. Which is BS. 

The new brainstorm is processing (scoring) the entire network from scratch with 2 million keys in about 3 minutes. So, it should be fast enough. After the first calculation, updates are basically in milliseconds.

Scaling is super easy. Each user picks an algo. Trusted assertions can be shipped to any relay out there, including our own. Which splits the load. Events are only sent when the score actually changed. So, minimum updates. And definitely no need to download the same records over and over again just to know if things have changed. Negentropy Sync then seals the deal if you need to keep things in sync.

It's a much more user centric approach that kills any potential leverage the algo provider or client might have to hide things from the user or offer paid recommendations without major backlash. It's accountability by exposure. 

And AI can quickly put up a score provider following nip85.. so we don't even need large companies running these things.