Option to close child comments.

I don't know if this has been said before, but there should be an option in the comment sections of a post to hide the child comments. I have trouble seeing seeing what is a comment, and what is a reply to the comment. And it would make things very convenient.

Or an automatic "@Username" when you click Reply to a comment that's already replied to a comment.

word. i don't like that there is a limit to the reply chain, but i understand the need for it. maybe something like youtube style where there is a little footnote about which comment it was a reply to.