slimboyfat - your main argument, at least in the title to your post, wasn't so much that the internet weakens "old style apostasy" as you put it, but that it weakens apostasy in general. I think that people having less inclination to have their voices heard locally is a small price to pay for instead having the ability to flood a worldwide information resource with information that exposes the Society for what it really is, a dangerous cult. Sure, I feel less inclined to go evangelizing in my local community regarding the evils of the Watchtower Society than I otherwise would, but by channeling my thoughts and sentiments online I can reach many thousands more than I would do by taking to my local streets with an axe to grind.
I can remember stories of apostates in my local congregation from when I was a very young child. There were rumours of one family that would sit near the front and heckle the speaker to the point of getting thrown out. I don't know whether they succeeded in attracting any others to their cause through this sort of behaviour, but I doubt it. Instead, they caused a stink and firmly entrenched an apostate stereotype of angry disgruntled hecklers, especially among young ones like me who were too young to understand their actions but had these explained and interpreted through others. I can't think how these sorts of tactics would be more productive than writing well-reasoned articles that thousands can read online from the most remote parts of the earth at the click of a mouse.
Also, as I've shown on previous posts, there is a correlation (if not necessarily a causation) between countries with a high internet penetration, and those with low growth figures.
So like I said, the basics of your argument (namely that the internet is good for the Society and bad for apostates) is still "utter twaddle" if you'll forgive my bluntness.