Why is "Burger King fish sandwiches" trending?

Wikipedia Overview

International fast-food restaurant chain Burger King and its Australian franchise Hungry Jack's have had a variety of fish sandwiches in their product portfolio since 1975. The Whaler sandwich was the first iteration, designed to compete with rival burger-chain McDonald's Filet-O-Fish sandwich. With the addition of the company's Specialty Sandwich line in 1978, the sandwich was reformulated as the Long Fish sandwich. With the discontinuation of the Specialty Sandwich line, the sandwich was returned to its original recipe and name. With the introduction of the company's BK Broiler chicken sandwich in 1990, the fish sandwich became tied to the development cycle of the broiled chicken sandwich and was again reformulated and renamed as the Ocean Catch Fish fillet. When the broiled chicken sandwich underwent another reformulation in 2002, the fish sandwich was also redone and renamed as the BK Big Fish sandwich. By 2015, the sandwich had undergone several more modifications and went through a series of names including the BK Fish and Premium Alaskan fish sandwich. It is currently sold as the BK Big Fish sandwich in the United States and Canada. Internationally the fish sandwich is also known as the BK Fish, BK Fish'n Crisp burger, Fish King and Fish Royale in those markets.