There is a huge problem with meeting in people's homes, not zoned. I was told that was why they stopped having the Tuesday night (or whatever night) book study in private homes. To put a stop to that would just take a few complaints from the neighbors about all the cars parked around a home to the police.
As far a the monitoring what one is doing on the web, that would be very easy to work around, it would involve having two separate devices. One would only be used for Watchtower related things, and the other would be for all the other stuff.