“Her actions were effective regardless of the intentions” - effective in what way? Stupid actions effective to reinforce others perception that the actor is stu

“Her actions were effective regardless of the intentions” - effective in what way? Stupid actions effective to reinforce others perception that the actor is stupid? I don’t get it. I must have missed the “ta-da” moment at the end, the big reveal, the one where the shocked naysayers are left humbled by the surprise transformation…