@ GAON
“The issue in concern is when the title of Foodie is given on the account of one being obsessed with food”
No one defines foodie this way so to give a person obsessed with food such a title would be misusing the title.
As an aside, if you read the referenced wikipedia article you notice that even using the term foodie to define the concept as it IS used in the definition is a point of contention. Why? Because the term carries a certain negative connotation which is not congruent (doesn’t shtim) with the concept in the definition.