StackOverflow did similar as many of us know.
So I will give the same similar suggestion, students in high school and undergraduates often will not ask for help in the real world or when they do want to hide their identify because they think they will look like ???
It seems that StackOverflow for such is very popular. 
Personally I think this is a better fit for groups than StackOverflow. Many people want help but often need a discussion at different levels. Also as many of us know the entire StackOverflow documents thing was a crash and burn but I personally liked it. So with Discourse as we see here especially with the PostgreSQL upgrade post, Q&A are coalesced into meaning/useful and quick to find info.