I think the cards should just be what the post is, not a description of it. The descriptions (a) are hard to pattern match quickly and (b) the creators value judgments are inserted (for instance “ethnic slur” is ambiguous in many real cases, eg negro could be legit in a spanish-speaking or referencing context, or “white trash” which could both be a slur and the title of an edgy Vice documentary). In my experience the…
It's only not considered a slur in the second case because Vice has money, you and your friends and powerful people like Vice, and the "white trash" don't reflexively assault you like beasts when they hear the words uttered. The meaning is understood and remembered regardless.