I understand your point, but I don't think it's fair for you to call people and their questions annoying and childish. Some people are just not entirely sure about some things so they look to the community for answers. That's one of the great things about being a part of a community, you help each other out.
Even reading over some things, people may not understand the game on as much of a deep level as other players. There are a lot of people who play PoGo that are new to Pokemon entirely, and they'd sure have a lot of specific questions.
It could definitely beneficial to split the Q&A into more general questions and specific questions about raising Pokemon or understanding how specific Pokemon could potentially work. I think having a second Q&A page with a more particular, dedicated purpose wouldn't be too unreasonable of a task.
I'm not sure if they have the resources available for this, but I feel like having a forum would be the best option, with similar sections. It would be better for actual discussion and not just simple Q&A.