Maybe it's good that they've documented this somewhere, but I don't think most Wire users read white papers. I'm a dev and I was surprised. Their outward facing marketing didn't lead me to think they track all my contacts and the state of every conversation I am having. It very clearly suggests the total opposite.
They need to do much better than this if they want people to think they take security/privacy seriously.
>> * Every group that you're in.
> This is the same as conversations... they clearly need to know this to route messages.
Why? That's not true for Signal from what I can tell.