Well, Gia isn't alone in the editorial side now, so the site is growing in that aspect. ^_^ (I never remember to look at the users number so I don't know about that.)
I don't know many people, so I can't "recruit" anyone, but I've been trying to convince at least one person to help with the writing side. I work on images mostly and it saddens me when the articles stay empty, but hopefully more people will join in the future, as you say.
I think there isn't that many people here because it seems like a lot of members for GB and CV are here. I myself came for GB. It seems like the Anime community really don't know about this website.....yet. What we need to do is spread the word if we can.
Well AV is fairly new (it's only half a year old roughly) so it's not going to be overtly huge yet but it's been growing quite steadily in my humble opinion. I've definitely found myself a home here and have settled down.
The site is getting a great start. I hope the the size will go up and the wiki will start looking awesome. But I think we got Time on our side. As long as we keep pumping out the goodness, the rest will fall in to place. Keep it up Awesome Staff.