I agree -- in theory, but I think it would be awfully difficult knowing where to draw the line between what's acceptable and what isn't. In my experience, many of the questions that are asked in the LDS DIR forum, for instance, are asked with another, more controversial question in mind. In other words, the innocent question, "Do you believe... [such and such]?" often ultimately leads to "Ah ha! Now the truth comes out!" But that's okay. I've learned over the years that it's generally a good thing to provide a certain degree of latitude for people who are looking for answers, even if they already have their minds made up. Even if the people asking the questions don't always learn from the answers, someone else might. I personally enjoy getting challenging questions, even those where there's a hint of criticism lurking in the background.