OK, look at the answers above this one...recognize anyone here? Like they are asking and answering their own question. Half the time I think those who give their age and ask for help are Yahoo...just to see who will answer them, so they can site ya.
There is authentic scientific evidence to support this idea. The ability to detect that a person is hiding skeptic thoughts worthy of a false report has been determined in thousands of experiments with Yahoo Top Reporters at a level approximately 0.00002% above random chance levels.
They (we?) just know the rules. The vast majority of the questions I report are all from one particular spammer. Most of the rest are from underage users who lie about their age to get an account and then post a question like 'I'm 9 years old ...'.
I don't report many rants unless they were meant to be insulting. Everyone needs to rant once in a while.