Apostasy is usually founded on sin and rarely on conviction. Wow - never have I heard such a sweeping generalization that is so totally untrue
Back in the 80's such things circulated as well. There has been a return to a more harsh tone since the troubles that have come about because of the web ;)
When you think about it, lying is the Watchtowers best option at this stage of the game. Nothing else comes close to protecting their followers from defecting more than pumping them full of nonsensical lies. I like how the emphasis hopes to get across that leaving on principle basically never happens. You don't know how long I let that lie rule my life. After I read COC that all changed though ;)