That was adding fuel to the fire.

这正是火上加油。

《新英汉大辞典》

When I see a bubble forming I rush in to buy, adding fuel to the fire.

我看到泡沫形成时，冲进市场去买，火上浇油。

youdao

Adding fuel to that fire was the common knowledge that, one turtle was soon getting twenty times what others got.

火上加油是大家的共识，一个海龟可以很快比其他海龟多赚20倍。

youdao

Adding fuel to the fire, the U.S. reportedly has no plans to tap its Strategic Petroleum Reserve.

FORBES: Magazine Article

And now, Mercedes is adding fuel to the fire by ramping up production of luxury compact cars.

FORBES: Mercedes, With New Plant, Takes Small Car Aim At BMW

With no hint of irony he says people shouldn't glorify the act of self-immolation and "should stop adding fuel to the fire".

BBC: Tunisia one year on: New trend of self-immolations