Here's my shot.
Points 1 to 6: these apply in every walk of life, sometimes even face to face. Especially do these apply to telephone and snail-mail. Why so? Because we routinely have to encounter new people, make new (and often brief) relationships to do business, complain, advertise ourselves, and have fun. We run a few risks from sharks and tricksters, but the benefits are exponential compared to the downside of not taking those risks. That's life. The Internet is another part of normal life for westerners. To seek to switch off this level of normal contact among people, as the Watchtower is doing (for reasons of spiritual security) is bunker mentality -- nothing more.
Points 7 and 8: I would venture that shaky, bony WT hands have probably written negative articles, using these arguments, about telephone, video, audio cassette and fax technologies as they emerged. But who's counting.
Moxy: I can just see myself laughing out loud when that was doled out at the DC. "Laughing at the speaker? ME! No, it was just my hay-fever tablets, really…yeah…mmm."
It's such wet reasoning isn't it? Like, there are poisonous snakes in Australia -- SO DON'T EVEN GO THERE. And if you happen to live there…just don't, OK?
Larc: Thanks particularly for bring up the authority issues; I hadn't been thinking along that line.
Advice to the WTBTS: If you sh1t so close camp, you need a good spade.
philo