Search:

a simple google seach " wow ingame forum addon ".

https://www.wowinterface.com/downloads/info14060-MessageBoard.html#info

Last update was for Patch 3.2.2. but it should work.

and ofc there...

got banned on my main acc :D

Its ElvUI addon pack. Nothing more. Heres dowload link https://github.com/ElvUI-WotLK/ElvUI/archive/master.zip

Extract 2 folders from Elvui-master to addons folder....