Why can't I post to some newbie topics?

[NsxV2rAt5E]

I want to comment on this topic, which is in the newbie forum, but I don't see the option to quote or to otherwise comment:
https://bitcointalk.org/index.php?topic=26539

Why?

I tried logging-in from another browser, and the same thing happened.

-- Answer:  Apparently that topic is locked.  Too bad, because I had something interesting to comment.  Never mind, I'll start a new topic.  I might as well lock this one too and see what happens.