Consternating Contradictions when it comes to IMDb's Acceptance or Rejection of Other Genres for Western titles

I have been working on Western titles, and there is a frustrating inconsistency when it comes to IMDb's acceptance or rejection of other genres for Western titles, particularly for the addition of Drama, or Comedy, to both.  This also extends to the submissions of other genres like: History (to take the place of the taboo "historical-drama" keyword), Romance, Action. Adventure, and even Music and Musical.

Some examples:

Drama is accepted as a genre for Rocky Mountain (1950), but NOT for The Big Land (1957).

Drama is accepted as a genre for Saskatchewan (1954), but NOT for Sitting Bull (1954).

Drama is accepted as a genre for Reprisal! (1956), but NOT for Pillars of the Sky (1956).

Drama is accepted as a genre for One Foot in Hell (1960), but NOT for War Arrow (1953).

etc., etc., etc.

Is the decision made at the fickle, lackadaisical, "scatter shot" discretion of disagreeing staffers?  It just makes no sense.  (And, yes, I have seen most of these titles during a boyhood spent in the American Midwest.)