It's a good UX, we should learn from it. Or port their client to nostr. Do they own your keys, though? At proto is a train wreck, honestly. They have cherry picked things from other systems quite inconsistently, and not the best bits, some of the worst bits. They have about 6 different types of identity in a single json file that is inconsistent with the standard and itself. It cant scale too well without a giant server. However they did make the smart move of investing (alot) in infrastructure, which is something they did better than nostr. Nostr can handle 10k DAU, maybe 2x that right now, in the hobby network, but not 10x like bluesky can. Different approaches, lots to learn, I hope it can be discussed at Nostrasia, especially scaling nostr, the good onboarding, great content curation for new and existing users. In that order because, onboarding is most useful when the network has capacity for new users.