Just because you choose to ignore a person doesn't mean that they've chosen to ignore you. This is a public forum and if you're making posts, you don't get to pick and choose who gets to see them or reply to them. You have the option of NOT clicking on the link that will show you an ignored person's post. If you want to say something and don't want another person to see, take it to PM rather than putting it out there in an open discussion format. EDIT: Thinking about it, this is a Facebook type mentality. I don't like this person or that person, so I'm going to defriend them and that should make it so they can't even see what I post... That's not how forums work.
I can see how it could be frustrating to see a person you've chosen to ignore being quoted, but you also have the choice when you see the post and see that user has been quoted, to scroll down without reading.
I guess I just don't get why people are so upset about seeing that someone else posted on the forum...