I came to the conclusion some while back simply to apply my own rules as to what I will or will not give out and not to get in too much of a tizz about others doing it their way. Having said that, part of my own rules is not to give out to charity quizzes too soon, never to give answers to long lists of questions, whether charity quizzes or not, and for charity quizzes and other contests that really require hard work to get the answer, to give clues/hints rather than answers.