Another curiosity, nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z. Is the info Signal servers receive not encrypted? They say they store no metadata in their server. Is not that true in reality. Why is then Signal so much celebrated in the infosec community?

I'll be very obliged if you take your precious time to enlighten us. 

Thank you.