Thanks for the heads up, definitely relevant.
I def think its important to be wary of such things. By default I had already disabled GPS and bluetooth, always deny permission for websites to use my location, etc, and am careful with apps I apply, revising their permissions and terms of use.
That being said, my actions are less out of fear and more out of principle, to avoid giving unnecessary personal information to those that don't need it or that I don't trust. I am not very paranoid because I live a law-abiding life in a country where drug use is not criminalized... For those that live in very repressive contexts, I'd be wary of even having a smartphone at all, or at least not mix personal info and daily-use devices with legally-liable information and discussions.