Nothing. But without this hack, they wouldn't be able to quote the message.
I have a small fix for those posts that don't have a post title. This will put a Re: thread title in if there is no post title on the message. Otherwise, on a message with no post title, you will have to manually enter a subject to be able to send the message. Kind of defeats some of the purpose of this hack without it.
Find:
PHP Code:
if ($postinfo[title]!="") {
$subject="Re: ".unhtmlspecialchars($postinfo[title]);
}
and replace it with:
PHP Code:
if ($postinfo[title]!="") {
$subject="Re: ".unhtmlspecialchars($postinfo[title]);
} else {
$subject="Re: ".unhtmlspecialchars($threadinfo[title]);
}
I also have it where it will put in the username and the subject but no quote if you are using Firefly's hidden reply Hack and you don't want any of the Mods or Admins to quote the hidden message to anyone. Just a catch-all, if anyone is interested.