If a thread is pulled by our moderators, it is either in violation of our board posting policies, or is a thread that represents a subject that (based on past history), will quickly degenerate into a personal attack or other posting policy violation.
I'm sorry, our mods make hundreds of post decisions each day. We cannot speak to the reason for each individual thread removal. Please see the sticky thread at the top of each forum "questions about moderation decisions" for more information.