Is there a way to add a auto censor to my forum?

for what?

Vulgar language, I would assume.

yeah, is this possible?

I believe this isn't possible. There's no link in the admin panel that points to a list of optional censored words.

i'm not sure this is really efficient. People can simply add . between each letter to get ride of it. ( f.u.c.k wouldn't be censored for example )