barwick, the admin said it's a new feature. This allows you to easily scroll through long threads and find your comments quickly on a post. maybe there's another reason, but that seems to be the helpful thing to me
From what I can see, if you are the original poster of the thread, your name would be in blue. If you post a comment on someone else's thread, then your name would be in gold. You're the only one who sees the gold.
None of my stuff showed up at first when I was on another machine so I thought I was blacklisted or something, hehe