Only if the store you’re paying at has Internet.

They’re probably fine for lug bolts at least, the studs are big enough an extra 10-20 ft-lbs would still be in a safe range. If they haven’t broken a stud in 25 years, it’s probably never going to happen.

In some applications it’s required, but not usually with lug nuts. The main one I can think of is Honda crankshaft bolts say to put oil on the washer and bolthead surface before torquing, and the torque spec is adjusted accordingly (still 181 ft-lbs tho!).

The most I ever do for lug nuts is just wire brush off any rust so the surface is clean, and re-torque after about 100 miles (I check them occasionally after spirited driving too, since hot brakes and things cause thermal expansion that can loosen things up on newly installed wheels). I don’t drive somewhere with salt, otherwise I’d maybe try using anti-seize like I saw someone else mention.

The government already has access to every phone number in existence. They can already track every phone to figure out who attended a protest or whatever. Filtering down to “all phone numbers who’ve ever connected to Signal” doesn’t exactly narrow anything down. They don’t have any metadata about who you were chatting with.