They're totally spoilers. They show too much.

I stopped watching them years ago, and no, I don't watch them in the theater, either. I do for movies I don't care about, but it's not like I won't watch this movie. I don't need a trailer to entice me to do so. But yeah, I'm one of those fans who leaves the theater for a few during the previews or closes my eyes and puts in headphones for a minute. Like the guy in full Batman cosplay did when A Dark Knight preview came on once at Avengers. We're out here. I don't watch then for TV shows, either. In fact, a TV show cemented this idea, when they completely ruined a plot point in a preview.

So, nope. Never watch the trailers.

I was never so glad that I don't watch trailers as I was after seeing Iron Man 3, btw. The very best part, for me, was in the trailer (I watched it later). But I didn't know about it, and so when I saw the movie, I lost my mind over it.

I can see how seeing it in a trailer and thus being excited/anticipating it can be fun, too, but I'd rather be surprised. And though I knew Hulkbuster should make an appearance, some might not, and it's just a thought to put it behind a cut. Not a huge deal, because as you say, it's minor, but a nice thought.

I didn't expect it to be here, though, or I'd have avoided LJ, like I did Twitter. Most here are more careful. But no biggie. I certainly didn't click play! And the still on this one wasn't too bad. ;)