Lots of great stories and tips!
I don't have that issue around here...we all pretty much just mind our own business and have friendly curb-side chats now and then, and keep an eye on each others' homes for suspicious activity...it's just a nice, quite place. Of course, there are those few who we don't like to associate with...the usual.
There is one fella in the neighborhood a few blocks away who has a pot-belly stove with a 4" vent stack about 10 feet tall. I've seen that thing fired up about once a month for the past year, and I can't help but to wonder what he was doing...a thick column of white smoke would be coming off that rig for hours. I've never taken the time to drop by and knock on his door to see what he's up to (almost never see him outside his house), but I sure hope he's not smoking meat on open grates...would be a terrible waste of meat and time. Maybe he does a covered dutch oven meal in it...or, possibly, he's doing a pre-burn with a low oxygen environment for a hot bed of coals before he throws something in to cook. Does he know what he's doing? I may never know, but, I'm not going to worry about it.
That's just an example of how someone's thought's could be carried towards judging someone else...I do my best to refrain from it.
Anyway, I don't allow myself to me consumed by someone's activities, especially when they aren't doing any harm. Unfortunately, some areas have a denser population of those who don't understand the unwritten basic neighborly rule: don't mess with me and I'll do the same for you.
As for the nosy neighbors and control freaks, I can only say: I don't go to your church or temple to interrupt your religious ceremonies just because I don't believe in the same religion. In return, I expect you to not come into my smoking sanctuary to interrupt my method of food preparation just because you don't believe in it.
If people are too hard-headed to realize that they have a responsibility towards respecting others' rights, then they should expect they're rights to be violated as well. It's a 2-way street, so pick a lane and go with the flow
Eric