I agree with @
Rollfast. In theory a newbie may choose to add additional information about an existing thread. Let's keep some of the redundant info together.
And, one should point out that everyone on this board with 1000 posts made that first post sometime, or first 10 posts sometime.
Make it too hard for newbies to feel wanted and to participate, and one will not get any new members.
Ok, so maybe it is 10:1 on one-hit-wonders vs longtime users. But, knock out all the newbies, and one knocks out all the new users.