Why do people on here only refer to the original as Gojira?

[Scarface32]

Technically they are all Gojira. Godzilla is the English word for Gojira. So how come when I see people on here refer to the original, they say Gojira but for all the others they say Godzilla? I usually just say "original Godzilla" or simply write it with the date Godzilla (1954) as is the customary way to write a film title.