Re: "death of email" ? not until chat gets federation!
"Because no-one ever receives chats from random bots pretending to be lonely young women on Skype and other chat apps?"
Uh...no. But then, I don't make my profile public. Meanwhile, I get spam in an e-mail address I never divulged, as if bots are picking letters out of a hat, throwing them out there, and seeing if they don't get a reject message.