Yes, occasionally posts are moderated for space and technical reasons. So if someone posts something twice (due to browser glitches), they post something that's too wide and forces the board to scroll horizontally, or the post something with a large amount of vertical whitespace, a moderator will moderate the post in order to make the board easier to read. Posts that use the <pre> tag can often cause these formatting issues. If you need to use <pre> please be sure that you use line breaks often, and use the preview to be sure the formatting hasn't been messed up.