Guess it depends how dark it is. If it’s dark in the venue, you’re going to notice it more. But if it’s dark in the venue and GI is bad, then maybe there’s something they should do about the game.
At the last tournament I played in, there was a gentleman that used a headlamp. I don’t think it was too bright. I didn’t notice it until I saw him strapping it on for his turns.
Vision can be all kinds of bad. There are plenty of people who probably have pretty dim vision that can still enjoy pinball. I would try to be accommodating and not say anything, because you don’t want to put somebody’s game off by making a thing out of their gear.
HOWEVER, it’s easy to see how somebody being an oaf about it could be very distracting, walking around like they’re in a coal mine. I think if you step up to the game, look at the playfield, and then turn it on, it should be no more distracting than when a tech uses a little flashlight (or headlamp) to work on a nearby game.
Ugh, lemme just get this off my chest… what KILLS ME, are CASUALS. I can have SJG doing tennis ball hail next door and it doesn’t bother me at all. But soon as you get two goobers hanging out talking about their jobs, I’m done. And KIDS. Kids are the ultimate casuals. Serious kid pinball players are fine! But parents with their squirmy kids, forget it. I know pinball needs its next generation and all, but golly I’m just not that cool. I know these are my problems and there’s nothing I can do about them.