The inverse is also true--some people decide whether or not police are reputable or scumbags based on prejudice. Thankfully in either case, reputation systems (whether a formal ratings system or an informal social reputation) can tolerate outlier reviews and consequently "argument's like the parent's" are not a particularly good way to dismiss criticism of someone (if someone is designated "a scumbag", it's on the preponderance of their reviews, not just those of one or two prejudice people).