This hack allows you to disable double posts.

You are able to enable and disable the hack at any time. You can allow/disallow administrators to make double posts and allow/disallow moderators to make double posts.

There are two possibilities when a double post attempt is detected: either the post can be merged automatically with the previous message (it is possible to define a separator) or you can send an error message.

You can set a time during which it is not possible to do the double post. After that, the member can post, even if he is the author of the latest message of the topic. With the permissions, you can allow members and groups to double post in a forum where it is otherwise not allowed.