I have seen the real reason:
Setting parameters for when someone should leave a debate with their non-compliance indicating a lack of intelligence is considered insulting, especially when taken with the subsequent qualifiers that were posted.
And yes, saying that anyone who isn't stupid wouldn't argue against you - in the middle of an argument - is, whether or whether not Ferrets posted it, insulting. It seems to me that simply because it was Ferrets who posted said insult it is okay in your books, and any infraction given for it is a result of this "conspiracy". Maybe - and just maybe - you are a bit too biased yourself?