At this time, it doesn't look to me like there are enough dump threads to justify having a specific forum just for them. If we go back two weeks, I only see about five threads that have dump discussions. Making a separate forum for specific subjects normally won't increase the discussion, just keeps the existing discussions better organized.
That's just my take on it, so I'll be sure the admins see your suggestion so that they can look it over. Maybe they can give some thought to a sub-forum inside of this one for the dumps - similar to what the garbage haulers have.
Here's a thread in which Sam had replied to a similar request: