Unless you can find a more definitive reference (a statement by Stan Lee, for instance), you're going to have an expensive time finding a copy of Hulk #1.

The superhero anonymity issue has been handled pretty well in several comics. Off the top of my head, I'd point to examples in: Superman Batman Spiderman X-Men

The 2nd Spiderman movie, in my opinion, handled it in a respectful way in that elevated train scene. [End of geek]