Achtung!
			 
			 
			
		
		
		
		It probably all does go through a single computer, but by necessity it will all go through a single router (which may be a dedicated appliance, or a server-class PC running software).  It'd be safe to assume that - especially with the user login - everything you do online can be searched and reviewed, and associated with your name. 
 
Don't do anything stupid.  Especially on their machines or network.  I am not a lawyer.  You are never as l33t as you think you are. 
		
	
		
		
		
		
			
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				very happy ammo added
			 
		
		
		
		
	
		
		
	
	
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