When they remove a post, it doesn't say "users post ignored." The post or thread just disappears, and you can find out why by going into "mymessageboards." however that doesn't matter because that is not what happened to you. "users post ignored" means that you put someone on your ignore list. (in this case, yourself. Lol)

Just unignore yourself.
Click on "mail" at the top of the page, then click on "ignore list" then click on "remove."