Our closest competition in this regard, Writers.SE, only has 24 questions or answers that contain the term "APA". However, I think with a critical mass of writing experts there, your questions might stand a better chance of getting an answer, despite it not being a popular topic.
That being said, I don't have a problem with them being here, considering that there's only been 2 so far.
I say, "yea" for the interim, but, in the case of newer users, we should provide people with a link to Writer's in the off-chance that they don't know about that site. We could definitely use the questions, but so my only hesitancy is that a large influx of style matters could push more topical questions off of the front page.