Yes they've already done that but they still see the thread in the list of threads. They're pretty much over the way the topic has descended into repetition of opinion not fact and they don't care to ever set eyes on it again. I understand it might be difficult for them to exercise self discipline in this way and it's just adding to their frustration. Such as now when the thread goes to the top of the thread list for being the most recently commented on. I said I'd have a word and ask....