Believing that the rest of us are as gullible as THEIR gullibles.
We aren't.
Being condescended to and patronized by supercilious blowhards and lied to and duped and duplicited and conned and scammed and tricked is INSULTING. They are spoiled rotten by THEIR gullibles. They are certain they are smarter than everyone.
In that view they are certainly stupid dumb. Thinking you are smarter than folks you don't know is a sure sign of mental defect deficiency inadequacy petrification and well putrification. Ya know? Ya don't know? Oh boy. Have I got news for you.