Branny, I seem to have the option of deleting your post, if you still want it deleted: the button is there, but of course I didn't try it to see if it actually works. I would have thought anyone would have the option forever of editing or deleting their own posts.

You could always try a dot in white ; then it would appear that nothing was there. Think I'll try making a truly empty post.

Edit: nope, still can't do it.