You could say the same thing about use of any product which isn't fully open sourced "how do I know this service really saved my files redundantly if I can't se

You could say the same thing about use of any product which isn't fully open sourced "how do I know this service really saved my files redundantly if I can't see the disks it's stored on?". It's definitely an opinion on approach though I'm not sure how practically applicable it is. The real irony is how closed "Open"AI is... but that's not news.