From what I remember, the last time someone from the dazzlingly white ivory tower was euphemistically described as a straight-talking person was when a piece of verbal garbage about copulating under spatial constraints was burped out.
Now the versatile straight-talker label has emerged again to save another person in the tower that is more in flames!
But remember: you are only a straight-talker when you speak the same way even when you know the whole world is listening. You can’t claim to be a straight-talker when your colleague walks out of a cubicle after you bitch about him if you have been acting chummy with him all this while.