If posts are so disruptive or heinous that it isn't a good idea to have them readable even after the thread is closed..... they are deleted. The thread may be closed to prevent things from escalating again, while at the same time leaving it readable for any good feedback or posts that are in the thread that can be searched for later.
Also, you are typically free to start a new discussion thread on anything, as long as the discussion remains civilized..... but this forum isn't a Democracy where its participants have certain rights.
Moved from Riddermark to Arkenstone on 9/29/2015!
-----
Disclaimer: The definition of "Soon™" and "In The Near Future™" is based solely on SSG's interpretation of the words, and all similarities with dictionary definitions of the word "Soon™", "Near", and "Future" are purely coincidental and should not be interpreted as a time frame that will come to pass within a reasonable amount of time.