According to the current guidelines we close questions that do not show sufficient effort at solution. Simetimes I find it more difficult to decide whether the effort described was serious. (I regard "I tried to solve it but couldn't" or "I find it confusing" as not serious because these can be applied to any question.) What I tend to do is look at the OP's profile. Sometimes it will show that the OP posted three questions in as many hours. I find this is indicative of little effort. Another time someone with close to 1000 points was accused of having asked a homework question, an idea that struck me as strange.
My question: Should we vote to close based on the question alone or should we use information available about the OP?
Note: This phenomenon is perfectly described by the word 'profiling'. While in the real world profiling is frequently used to describe discrimination based on ethnic or religious background, the profiling described in this question would be based solely on previous merits or lack thereof.
This meta question was created because of a welcome difference of opinions about this question.