Hello, Otter, thanks for getting back so quickly, and putting thought into how this forum could be managed. I agree with you, really, that what I proposed might turn out to be worse. I wrote in a previous post that narcissists would need to start or contribute to threads, for this forum to flourish in its intended format, and I think that they may not do so for other reasons, besides not seeing posts from fellow narcissists to spark their interest. (E.g., just not having anything that they particularly want to say, or not wanting to repeat a particular topic.)
So I think it likely that a forum reserved for threads started by narcissists, where 'nons' were welcome to post, would be very quiet, and mainly kept going by the 'nons'. I just see this forum, almost the only one of its kind, not really serving its original purpose. Those narcissists who've posted in the last couple of pages haven't really seen the need for the current format to change, and as you say, for practical reasons, it should probably remain.
So thanks, Otter, and others who've shared their thoughts and ideas, I appreciate it.