You should already know the rules but just too confirm them..
-Harsh swearing not allowed.
-Inappropriate Videos/Pictures are not allowed
-Flaming or harassing other users are not allowed.

You make an announcement when you are
-Joining the forum
-Leaving the forum
-Have something important to say.

If you do not take announcements seriously, (post spam threads etc.) you can and will get punished.

I will post announcements when something major changes in the forum