Rather easy tweak and generally default in all Unreal Engine games.
Open S1Engine.ini in ..\TERA\Client\S1Game\Config\
Find bAllowMatureLanguage and change FALSE to TRUE so it looks like below:
Save and be a sailor.
Ahoy! You [filtered]ing donkey [expletive deleted] mercenary! Thanks for the tip! Now lets all go out for a drink and [blocked] some [offensive] on the poop deck!
If you need to swear every second than you don't need to change it, because immature people don't know how to use the english language properly. Thus Mature chat isn't for you.
Good find, however I have to say I was shocked at how immature and loud everyone was last night.
It'll undoubtedly come off as condescending to some, but I was really shocked because I figured most of those on last night got in through pre orders, that requires money, that typically sort of prevents most of the worlds worst from making themselves heard.
That was not the case at all. All the meme's, 4chan references, reddit, tumblr, etc... Remember when those were underground? Remember when the rules somewhat mimicked fight club? When, yeah, it was sort of like a special underground club.
Oh how I miss those days.
Good stuff! Now when someone rages they can do it with gusto lol.
I figured out a similar method in Lineage 2, which also didn't have it in the options menu. I thought it didn't work for almost an hour before I figured out my guild were censoring themselves just to [filtered] with me. >.<