If I am going to be in a traffic area where AIS is relevant, privacy is the last thing I want. in fact in general, when I am at sea here in US and Canada coastal waters, I'd like as many people as possible to know where I am.
Now, to be a hypocrite, I must admit AIS is way down The List. Radar, a couple of VHF radios and a set of big air horns does just fine for our purposes in the meantime. I think it's highest value is on some of the twisty inland waterways with barge traffic. Though again, VHF solves that to a large degree.
George
Hatteras 56MY
Boston Whaler 130 Sport