I think a better question would be - how many spam artist are on hubpages taking up space, and lowering the value of the site.
You can get tons of followers by participating in the forums and being everyone's friend, asking how their kids are - you know the drill. Asking ans answering questions helps me get followers, I think. Commenting lots of hubs with good comments gets you followers. . . . .or if your comment is too good. . . .eh, you might lose some that way too. . .not that has ever happened to me. Just thinking out loud here. Hey, got an extra smoke I can bum?