The prize was meant to refer to his full set of comments on that thread, rather than any particular comment. But to reduce possible confusion, I’ve linked to a particular comment.
Thanks. Just to be clear: before your edit, there was no thread linked, or at least no link showed up on my browser. I mention this in case it reflects a bug with the site rather than an oversight.
Sounds like a bug; I’ll keep an eye out for other instances. What browser were you using?