Elizabeth, if you had kept up with the messages on the board you would have seen several from Frances explaining that spammers send multiple messages sometimes using "normal" words over and over again, and the only way to bring them to an end is to ban them - sometimes only temporarily. All you have to do is contact her or the email address given and they will check what is stopping your message, and fix it.
Of course if you would rather have dozens of offensive or "rubbish" messages on the board we won't bother to remove them, or block the following ones from the same place.
Sue