my personal problem with primal is that their caching servers essentially end-run Nostr and turn it into a pseudo centralized service. You can take your key elsewhere, but if Primal were forced by app stores who were forced by courts to censor, normal people would absolutely not notice or choose alternative Primal caching services. To the vast majority of users, the default is what will be used forever. So when I am onboarding my friends to Nostr, I ask them to use anything but Primal, because I have been personally censored from every centralized financial rail and social network in the world. Even the “free speech” ones like Gab and Poast have banned me. I am willing to see additional data be used to have a client that is actually interfacing with the protocol and doing its own data collection rather than trusting the cache of a centralized third party to do so, and I ask people that follow me to do the same.