ProfanityGlue attempts to fix the 4.3 Blizzard bug with mature language filter auto-enabling.
Note: This addon will not automatically set the filter to "off".
Instead it will only make sure that the player preference sticks (hence "glue" )
ProfanityGlue will automatically work for WoW 4.3 build 15050.
If the bug still exists for later WoW patches user will need to re-enable it by using