perhaps you were really wicked and said naughty things so the moderator deleted it. More likely, you did what I've done, wrote a reply then hit the wrong button.
I've found from experience if you press submit then click on board index immediately after then you are more than likely to lose that post, give it time to submit and wait for your post to be visible on the thread before clicking on anything else.
I did see the same post from you in three separate places. Each had a different heading. Just makes it easier for you to get answers to the same question in one place.