making members pay to ask questions?

Is it possible to gate keep questions for paid users? A bit like a membership plugin where select posts are for paid members only. Here, a user would have pay a fee to ask a question, or pay a subscription to ask multiple questions. And as paying users, they can access the questions they paid to get an answer to and the questions & answers of other paying users as well.
Is that possible, and is it something anspress would ever consider doing?