Yeah, its probably true. There are a lot of people out there looking for answers and the simplicity of the website and their "public" message is really attractive. the introductory video that was part of their pamphlet campaign JW.ORG blitzkreig was impressive. The resurrection video plays the heartstrings, so in a moment of emotion...people will request a study.
Now, realistically, out of those 1200, about half are probably phony, disgruntled sorts that just want to wreack havoc on the website. I would imagine that there are some on this forum that have done so. Out of the other half, the majority are probably never even contacted by some witness cause they live in some remote area where they are not readily accessible. The other portion, those who are finally contacted and begin to study give it up shortly thereafter cause they realize that the "public" message is oh so different from the cultish one.