BTW, it isn't difficult to deny users to disable censor
open usercp_register.php
this line
$allowswearywords = ( isset($_POST['allowswearywords']) ) ? ( ($_POST['allowswearywords']) ? true : 0 ) : 0;
replace with
$allowswearywords = TRUE;
$allowswearywords = ( isset($_POST['allowswearywords']) ) ? ( ($_POST['allowswearywords']) ? true : 0 ) : 0;
replace with
$allowswearywords = TRUE;
and then run this sql
UPDATE phpbb_users SET user_allowswearywords='1',
i didn't try it, but i think that users won't be allow to change the value, despite they see the field on profile for changing it