Your first step, before using this facility, should usually be to complain directly to the author of the scenario. You can do this by leaving a comment on the scenario. Please use discretion when deciding whether a scenario is really "inappropriate" - there is a fine line between censorship and reasonable restrictions! Remember that you do not have to play a scenario if you do not like it.
Please be specific about the problem, and explain how we can verify it. Ideally, give your email address so we can contact you if we need more information. If we can not immediately see the problem with the scenario and we cannot contact you, we will take no action.