If someone in the future will ask here a question about mathematics in general, one can tell him/her to look into math.SE.
As far as I know there is no general pedagogy/education SE. Of course, we have to close the question if it is completely unrelated to mathematics. What do we tell people asking such questions? Do we have to tell these people that such questions are not covered by any SE site? Or is there some site where we can sent them?