The annoyingness of the clickthroughs and loss of cuts are the same.

The message says "should be viewed with discretion" instead of "possibly inappropriate for anyone under the age of 18." I find that less of a problem ideologically - because yeah, the thirteen year old in an Alabama library maybe does want to view the list of crisis hotlines or the lgbt history meta with discretion - so if you do want to use one by default, I like that one a lot better.