I there a way of deleting your own post after posting it. If there isn't, there should. Say if someone posts something that had nothing to do with the topic and they wanted to delete it. There should be a box that you can check thats says delete message when you go to edit the post. Then click save and it deletes. It will cause less double posting and will be very useful. Think about it. I've seen other forums use it.
I imagine they would be gracious enough to understand if it happens once in a while. If it happens all the time I think you need a note from your psychiatrist
I have made a few posts, then read them and the only thought that comes to mind is: Better to keep your mouth shut and be thought a fool, than to open it and remove all doubt.