I asked this question:https://math.stackexchange.com/questions/732370/what-do-we-mean-by-number-of-things. I do not know why it is downvoted. I asked in my comment why the silent downvotes but none has told me the reason(s) yet. It appears to me that I made something inappropriate but what. I want to improve my question. English is not my first language so if the downvotes are due the grammatical or formatting mistakes then please tell me I will improve these things.
Edit: The question has been edited to become more direct. Why it is still downvoted? Why it is closed? If it is not about mathematics then to which field it belongs? At which SE site I should post this question? Once I had posted a similar version of it on English-lang-learners.SE. They said it should be asked on MSE but now it is closed at MSE too.