Thank you so much, #[3]​! You have not lost me. I am just not in a place where I plan to be using nostr very frequently, but as you can probably tell from my previous posts, I think filter is one of the highest value services available in the nostr ecosystem. Being able to roll with a small list of relays and still have great coverage is hugely important for mobile apps.

Are you exploring any options for payment via request/event size? I supposed that is probably a far more complex model to implement.