Many stacks in the stackexchange site are facts-oriented, and Q&A are facts-oriented questions. However, my understanding of cognitive science –at least the cognitive psychology sub-area—is that very few facts are taken for definitive; all discoveries are tentatively explained and the explanations are very likely to change through the years. Hence, in my opinion, fact-seeking questions are very unlikely to yield a high proportion of answered questions.
What units the empiricist in cognitive science is methods. All cognitive scientists are very strong with respect to experimental methods (and statistical methods as well, but cross-validated took this part). Consequently, a question that is very likely to be answered is for example: "How could we set up and experiment that would show that X seems to be true". All the contributors of cogsci are likely to be able to contribute to such question, and a best design might be identified by the person who asked the question. Compare this to the following question "Is X true?" which cannot be answered for a vast majority of what we may think of. Take for example can-hypnotherapy-help-to-change-my-tastes-in-food. Any answer will be approximate unless someone happens to be studying that very precise question (what are the odds?).
Some stacks are not facts-oriented. For example, the TeX stack (wich I appreciate much) is output-oriented. What solution could yield a desired output. This is what TeX professional do, this is how they see their job, and this is why they feel that TeX – LaTeX is where they want to contribute. Same argument applies to cognitive scientists: They are strongly method-oriented, method questions make sense to them, and they are well equipped to answer such questions. Promoting method-oriented questions might also attract more scientists involved in the cognitive sciences.
So my question is: Should we encourage more methodological questions? Is that question what-experiment-in-a-simple-decision-task-should-we-run-to-obtain-one-million-trials a good example of method-oriented question and thus, should it be closed or not?