If I remember correctly, as a consequence, they store all of your unencrypted contacts on their server, or at least all of your unencrypted Wire contacts on the

If I remember correctly, as a consequence, they store all of your unencrypted contacts on their server, or at least all of your unencrypted Wire contacts on their server. Unlike Signal, which stores nothing about you other than the date your account was created. That may be the "complexity" you're not understanding, in this case.