Apparently there are some people who keep responding (or trying to) to me and I can't see their posts because I have them muted. Sometimes they keep responding as if I'm talking to them. 
Do they know they are muted?
						
					
					
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	No, they don't. But neither should you as long as you don't click the "show all posts" link. For example, I didn't know Recon 54 even posted here anymore until I saw that he edited your post.