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Yes, if no one will be free to moderate it, it is better to avoid it.

Because it is not on the front page of the forum. If it was there, many users would have used it.

It is like chat box, but it is called a shoutbox for forums.

Add a shoutbox.

Allow users to search for titles containing formations in the form of ?*-?*-?*, ?*-?*-?*-?* and ?*-?*-?*-?*-?*, and display proper results. As it is now, the search results return as 'no matches'.