Oddbean new post about login | logout I find such debates somewhat useful. They can indicate people with reasoning I find poor, and help recognise reurgi-thinkers who don't seem to form their own opinions. Signal's insistence on mobile phone numbers falls foul of my threat model, so I don't use it. I do feel their crypto is good though. (They told me years ago they were going to do away with the need for mobile numbers. Crickets.)