The FSM for my 210 explicitly says to never put any lubricant on the ball of the lug bolt or ball seat of the rim, but does not mention the threads at all. I have always lubricated lug bolts and have never broken or lost a bolt or nut as a result.

I disagree that you should feel comfortable with someone tightening your wheels with an impact wrench and torque stick. Those things are better than nothing, but really not all that good.

I use thread lock on about everything that doesn't get oil, grease or anti-seize compound. Thread lock will also keep water out to help prevent corrosion. You have to break the thread lock, but you have a much reduced chance of galling upon removal.

One exception: I never use thread locking compound where there is a plastic part involved. I have seen too many plastic parts turn to dust after a week or two after doing that. I don't know what plastics may be affected, so I just don't use the stuff.