That is because I edited your post trying to add the quote dots, which were missing when I just selected the text and clicked quote. When you expand, it shows the full unaltered post.
I don't know why it decided to use "-" instead of the dots though. Ill add that as another tip now.
What is weirder is how now my first post on this topic is now a reply to one of your later posts on this very topic.
edit: As on the reason why not all links appear on the right of my first post, I now suspect it might have something to do with the fact that the link was edited in. I think the link only shows up if you create the post with it there. Or maybe it should show up, but that is why it bugged and didnt.
edit3: Yeah, I just quoted the post above on an edit and nothing changed.