Christiaan Briggs said:
No more so than is taking place with controversial images already. And as Nicholas has noted categories are highly unlikely to be have such vague labels as "offensive". The point, remember, is that we are trying to identify not "offensive" but "potentially offensive"
As we've discovered in recent discussions, there is no firm agreement on what constitutes potentially offensive content. Some are holding even the hammer and sickle to be potentially offensive, while others have used the word "taste" in describing a picture of an abused child.