Human communication relies on a schema that includes some context on the sender of the information. Am I receiving this information from my mother? from CNN? from a dude on Telegram I kinda know? All of this IS critical data that informs your processing of it. To remove or hide the sender on purpose IMO would be devastating to the actual sense of communication between humans and people would not like it. Additionally, you become much more susceptible to manipulation by spam bots if you lose the metadata of source.