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I have been wondering around on some stackexchange sites for quite a while and sometimes read the hot network questions. An interesting fact that got my attention is, when a user on stackoverflow asks a somehow trivial question, it gets flooded with downvotes and attacked by sharks complaining that "this site is for professional programmers" and "get out of here, noob" or something like that (a little bit exaggerating I know, but just a little bit). On the contrary, when a user on MathSE asks a really simple question like solving $\sin x=\cos x$ that only needs some basic high school math knowledge, it gets warmly welcomed and attracts so many answers and upvotes.
So my question is, what should be the level of a math question to fit on this site? Is there any lower bound to that? And one side-note worth mentioning is, I don't have any problems with that kind of questions getting people's attention and upvotes. I am not a professional in math and sometimes I might even get stuck with such trivial questions.