Somebody contacted me offsite to say that the above build isn't always working for them. At this point I don't know how many hours I've spent staring at the older name code, trying to figure out what's wrong with it, but my tentative conclusion is that this is not a new problem. If you join a 6.3 CTF server as a 6.3 client, and switch the gamemode to battle, your name colors won't always be right there either. I haven't given up yet, but it's possible there's may be no way to force 6.3 (and below) servers to behave other than for people to stop hosting them.