The addition/rejection of other genres for Western films (in particular) continues to be a huge problem:

@bradley_kent​ Well, they've both gone through now (as well as The Big Country), so here's hoping you have better success with yours.

Dating back to the ancient civilizations of antiquity (and elucidated by the ancient Greeks), narrative literature and storytelling have two "super genres": Comedy and Tragedy.  (Hence, the iconic hellenic masks of Comedy and Tragedy.) They are the two "super genres" that, through time, have evolved into Comedy and Drama.  Comedy and Drama, therefore,  precede all other genres. 

Show biz awards like the Emmys, the Golden Globes, and many others, categorize titles as Comedy or Drama.

A major Western like the Gunsmoke (1955-1975) series, for example, was nominated for and won Emmys in the "Drama" or "Dramatic Series" category.  Westerns are either a Comedy, or a Drama, or both. This is the plain, simple, obvious fact.

If IMDb is an archive of factual information, it is obliged to report the facts. It should  not pervert the facts with personal, subjective, artificially created agendas.  All Westerns are comedies, or dramas, or both.  Something "is what it is," and that fact should not be denied.

Sublime arrogance and blind ignorance are not excuses for ignoring or misrepresenting the truth. 

Please, IMDb, come to your senses.

@bradley_kent​ 

What IMDb has said is that you should provide explanations or sources in your submissions.

That some edits are accepted while similar edits are declined is not unusual. Even if some items were randomly selected and rejected because further evidence is required, that would qualify as a spot check. You are of course free to keep submitting without evidence, but then you will just have to resubmit with a better explanation if the first attempt is declined.

Varying with who is submitting corrections, sometimes evidence can be provided and corrections will be declined regardless. I don't believe the IMDb data editors can always thoroughly check out every submission within seven days' time. Sometimes they have to evaluate how much they trust the contributor and simply make a decision based off of that.

@bradley_kent​ I agree that Westerns should almost always have another genre, as having only the single genre generally indicates the setting but not the tone. But I don't agree that all westerns must be listed as either a Comedy or a Drama; some exceptions that come to mind are Cowboys & Aliens and Ravenous.

I'll add that the Comedy genre is widely abused, as contributors often add it when simple comic relief is present; I've submitted Comedy deletions today for Little Big Man and Coogan's Bluff. (Edit: Comedy deletions rejected. Sigh...)