I agree with the sentiment, but I don't think a competition investigation is the appropriate forum to deal with this. There should be a fine, perhaps through a class action or criminal conviction.

I certainly hope the penalty for illegally wiretapping hundreds of millions of people is more than $1 per head. I value the privacy of my conversations (and life) way more than that.

Besides, if I opt-in to this service, why should everyone who ever walks into my home or office be presumed to have made the same choice? What if I am a doctor or lawyer who is not legally allowed to make that choice?