Sounds scary, but quite sensational. I would like to see some solid evidence before I put too much stock into these allegations.
If true, I'm guessing they only target those who are immediate threats to their financial interests. Not every rank-and-file Witness or former Witness. Not even ordinary "apostates". Otherwise, because of texts, phone calls, online activities revolving around TTATT, they would never have reinstated me.
Edited to add: And I don't think the local elders in my congergation spied on me either. At least, not while I was out. I think they are too busy in the treadmill of cult activity.