Thanks, we've gotten a lot of mileage out of the following ethos: Let users ignore danger, but never let users ignore the fact that they're ignoring danger. Alw

Thanks, we've gotten a lot of mileage out of the following ethos: Let users ignore danger, but never let users ignore the fact that they're ignoring danger. Always give users a way to learn exactly what the dangers are. In the case of the query optimizer we haven't gotten to giving people a way to ignore these dangers yet but we will eventually.