How to avoid flame wars

I am starting to see a trend.  A trend that almost always lead to disaster and a huge flame war.

This is what happens:

Blogger 1 writes something.
Blogger 2 responds with something Blogger 1 doesn't like.
Blogger 1 Blacklists Blogger 2
Blogger 1 writes the "last word"
Blogger 2 starts a new thread in response to the "last word"
The flames begin.

1) Let's try to avoid that
2) If you have to respond on a new article, or flames have started on your thread, please take it off the forums. 

That way the forums can remain peaceful.