most of my questions on ue4 answerhub are not answered, why?

this is my questions:

are my questions too simple or stupid to have an answer?

or the answerhub is not as popular as forum?

I think a lot of those questions are already answered in the documentation, or with a simple Google search.

thank you for the quick reply.
before I ask any questions, I will google the web and check the related documents.
I am not an english speaker, so I may miss something important.
You would be appreciated very mush if you tell me how you find the answer of any one of my questions.