OK, I would agree that the VOC's in many exterior finishes are not
something that one would want in the house, particularly a closed
house. OTH, if its spring/summer/fall and nice outside and the windows
can be opened, I say paint away. I have used spar varnish, boat grade
oil finishes, high gloss paints, exterior primer on nasty bathroom
walls, on and on. All however were used with lots of ventilation,
fan(s), windows open, etc. If you can't ventilate don't use the stuff
in the house. Call me dumb if you'd like, that's OK.