Quick Tip: Why isn't there a "reply" link on a post?
You may sometimes notice that when you want to reply to a reply, there is no 'reply' option on that post. This is because the software limits the number of levels of replies (you see this as levels of indentation) that a post can have.
If you want to reply to one of these posts, we suggest you look a bit further up the thread and reply to another post that's just a little higher up in the chain. Please mention in your new post which of the other posts you're replying to.