Um... How do I Reply ?

I'm no spring chicken to forums, but where's the "Reply" button? I want to reply to a answer posted in responce to my thread, but I can't figure out how…

there should be a reply button in the lower-right of every single post in a thread.

we force-removed the reply button at the top of the page because people were using that instead of comment-reply (ruining the thread nesting)

maybe you have a problem I don't see?