Unique requests for a bible study might not even be a really useful number. They've not got a captcha on the request form, and I'm sure there's a few "requests" from appostates that aren't genuine. You'd have to filter those out first.
Actually, now that I think about it, the lack of a captcha could be taken advantage of if anyone wanted to make the "request a bible study" feature essentially useless to them. All someone would have to do is write a script that submits tons of requests. Ideally, with unique legitimate addresses (doesn't have to be residential...just something that'll come up on google maps) and names, etc so that they would have no way of filtering out the genuine requests. They'd then have a choice on their hands, either treat them all as legitimate and have people in the local congregations follow up on every one, or throw them all out. Either way, there'd probably be a useful effect. If folks in the congregations keep getting a request to follow up from "mother" and they're always BS, they'll probably stop following up. At the very least, they'll be forced to acknowledge that the org isn't as innovative and efficiently organized as they once thought.
If they throw out all the requests, then at least it might prevent a few people from getting sucked into the cult.