I was told that the main reasons why people leave JW is for sex, apathy because they'd rather be doing something else, or they get angry. Very few for apostasy.JW that leave seldom join another religion. Before the net, since apostates could not publish their views and explain their position, they had very little influence on the JW. Shortly after the turn of the century, the WT was concerned that apostate thinking on the net would persuade JW, because it did. But that has been going on now for over a decade, and most JWs are apostate savvy now and they still choose JW. JW are convinced of their position in-spite of the challenging evidence against what the WT taught in times past. JW would never leave because of that.