why cant these "inflamitory posts" be deleted, a pm sent by a mod and the thread resumed?
That's a great idea, Jericho9mm, but not an original one. The staff usually does exactly that when possible. As a matter of fact, the last thread you listed in your example had five deleted posts in it.
It gets very frustrating when I delete or edit inflammatory posts and return a few hours later to find that the same people who have had their posts deleted have come back and are at it again. In cases like that, I just close the thread.
Your solution is to open another thread and strive to keep the thread on topic and free from ad hominem.
You may get a different answer from a different staff member. That's just how I see it.