Another banning alternative....
 

Can someone do a hack that does the following:

When a user makes a post or a thread..... it gets automatically moved to a forum that the admin specifies? Like a forum thats invisible to all others except staff?

Use my Form post to Forum hack. :) It's in my profile.

Oh... I see what you mean... just make that use a moderated user, and his posts will be moderated.

But will that user still be able to post like everyone else? Will his posts show up as a moderated user? Its just that I dont want his posts showing up anywhere, I just want them all moved to the staff room, thats all... so its like he's talking to a wall :ermm:

doing what erwin suggested, his posts will be put in the moderation queue, and will not be displayed publically. up to you and / or mods to decide whether the posts see the light of day or not after that.

I cant find anywhere to put a user's posts under moderation.... someone please help?

they aren't actually 'put' anywhere on the board as i understand it, they are held in the moderation queue. to access this, you will need to go into your admin/mod cp and check them from there.