It wasn't the complaints about noise. It wasn't the claims that new rules had created a form of taxi-cab racing. And it wasn't that campaign by Bernie Ecclestone to talk down everything Formula 1 2014 had to offer.
No, the tornado of negativity that blew through F1 in the early stages of this season was first stirred by the furore over the introduction of double points for the season finale (and then refusal to back down) that left everyone bar those who voted for it up in arms.
Worse than that, it showed how little the sport's chiefs and team bosses really cared about what those who follow the sport think.