When this article went up, I realized that I'd allowed WA to access my Contacts, so I went in and revoked that permission. It immediately reformatted my whole conversation list as phone numbers instead of names. I can't rename the conversation, but I can "add to contacts"... which inexplicably shows me my OS contact editor, which they're not allowed to read. So I guess that as punishment for not letting them constantly vacuum up my contact list and send it all to FB, they make it harder to figure out who I'm talking to. Classic FB.