Two other reasons come to mind: post stroke victims experience disinhibition of emotion and dementia patients especially in the early stage where they appear normal.
I can personally testify to this. And the EIGHT years wore down whatever self-control I had left in this area.
Besides, a pushy dork in a psycho cult for celebrity kooks practically wears a "Kick Me" sign (particularly when he has an ADHD spaz attack on Oprah). And Lauren has always been fairly blunt anyway.