Because of its high alcohol content, Bacardi 151 was particularly flammable among liquors. While the company never issued a formal statement regarding the product's discontinuation, it has been speculated that "it's a pretty good guess that Bacardi got sick of being sued."
Why did Bacardi stop selling “Bacardi 151” in 2016? It was discontinued because Bacardi was/is trying to clean their image up. They were concerned that the highly flammable 151 had a reputation as a danger to it's consumers potentially causing excessive drunkenness due to it's high level of alcohol.