Anyone who has a background in human behaviour knows that even the most "normal" humans resort to sub-intelectual behaviour, when allowed anonymity, argument and opinion all wrapped up in one. I sympathise with DF and his staff entirely. I wish however to point out that his "warning" contains no less than two or three direct insults and inapropriate statements; considering that they come from the manager (owner) of the world's most popular aviation conversation forum. In my own opinion, he could deal with this matter more effectively.