Can allow some roles to ask questions, while other roles require moderation?

On Q&A section is currently open to members only, and we don’t use moderation. However, we’d like to open the site to a wider audience, but we’d like non-members of the club to be moderated. I don’t see a way of doing it in the application today, but thought this could be accomplished by adding a couple of capabilities:

ap_new_mod_question
ap_new_mod_answer
ap_new_mod_comment

Or, probably a simple approach would be a single capability that determines whether or not users with that role are moderated:

ap_no_moderation

Posts from users without that capability would need to be reviewed before being posted.