Where are you finding BBQ which registers as "the hottest food"? I can't think of a single regional BBQ style which would qualify as needle moving at all for me.
For the curious, this is a barbecue joint in Redmond, WA, just outside of Seattle and near Microsoft's headquarters. The owner, Porter, is famous for a hot sauce called "The Man" which is served out of a small, beat-up pot with a long handled spoon. If you get him talking, he'll tell you a story about someone trying to sell him capsicum extract-based sauce for his new BBQ restaurant (there's another interesting backstory about it being a car repair place previously). But it was too expensive, so he went upstream to his supplier and started buying it wholesale. He cooks it up with peppers, but the base is prefab.
It's also near-lethal... consume with caution.
Disclaimer: was last there >10 years ago, so much may have changed.
But there is no regional BBQ style which is spicy.
I can find nearly any food item on the planet that somebody has decided to jack up to 11, that doesn't make that food item the most generally hot thing out there.
