I have been researching how to start a discussion forum, and one principle is not to have too many categories.
On the other hand, we don’t have a lot of categories as its stands, so adding one wouldn’t be too expansive. I would have liked another category called “Not sure” for the on the fence people like me.
One implication is that it means someone has to step up to be a moderator of that forum, or an existing moderator has to add it to their existing responsibilities. I know from personal experience to moderate a forum it helps if you have a personal passion for the topic…