Kizzy,
I must admit I don't remember that particular post from Kath and I only vaguely any other particular posts. That being said, disrespectfulness is only one reason to delete a post. Recently, many posts were just off-topic in my opinion.
I don't mind if there is one or the other off-topic post in the main forum – particularly if it humorous :-) –, but recently they were overwhelming in number, not humorous at all and they overshadowed any factual discussion regarding POET Technologies. (Not that we had many facts to discuss, but it seems difficult not to post in the face of lacking facts …)
Oh, and then there is Agoracom's bad words filter which might explain why a post disapperas immediately after posting.
Hope this answers some of your questions!