Yes!
No.
Leave it for the Mods.
Undecided.
I've posted this a long time ago. That tells you that they won't look at it because the features would've been activated a long time ago. I went throughout my ways to create a vBulletin demo to see what the site can do, and I was very surprised. I couldn't personally run a diagnosis on my test site I created because it was a demo. But I encourage TL to look at it if it's really a glitch.
I feel like I'm missing out
Ooh, theory time!
What if, since sign-up was put in games, the users ended up as awaiting e-mail confirmation, or similar?
Then it wouldn't work fully.
Depending on how the defaults are set within vB, they could either bump up privileges, or use a promote tool after say, 5 posts to the Normal Member permissions.
If such a promotion feature exists on this software, they could also let users have small avatars after 10,000 posts, etc.
Oooh! Rachael, I love you! That could be it. I never thought of that. All other vBulletin forums give you the option to sign up. Since we're already in the system due to our Storm8 ID, maybe the forum didn't recognize that we're actually members?
I would suggest this to TL, but I don't know if they'll do it.