All types of questions get answered on musing, it doesn't matter what the background is. As far as whether or not people ask anime based questions on musing, I honestly haven't seen any myself but now that you've mentioned it I think I'll start asking them myself. I'm a huge fan of animes and I have a lot of questions to ask.

Oh and as long as the question isn't offensive in any way whatsoever then you can ask the question on musing. There'll surely be an Otaku like myself who'll be willing to answer it.