Twitter is giving up on encrypting direct messages...
…At least for now.
This shows how unnecessary encrypting is sometimes. Some people like to encrypt and encrypt everything, and don’t consider a solution “usable” if it not fully protected.
I’d argue that twitter has always been a very “public” and “exhibitionist” kind of websites where the private messages have never been a core feature (and it’s actually not a really well done message system) and no user is obviously going to use it for “serious” matters. So why spend time encrypting it ?