I was glad to see the number of theatres or theatre-related landmarks flagged as PokeStops, as well as the numerous works of public art, obscure monuments, and other small, easily missed, sights. I'm seeing things I've never even noticed after living here for 8 years. Friezes and statues above eye-level on buildings, plaques and cornerstones on buildings, murals on odd blocks. It's been nice to be given a map of things that are all around but not noticed because they're small or out of the way or otherwise not notable enough to be mentioned in overviews of the area.
It's also been nice to talk and share moments with strangers of all backgrounds. I've been stopped on the street because someone's noticed I've been playing, I've been in groups in Bryant Park pursuing a rare monster, I've had friendly rivalries with people in my neighborhood. All different races, gender, ages. I think in a world that's screwed up and divisive, people are really happy and eager to share something fun that puts everyone on an equal level.
Obviously some people will do something stupid or inappropriate. But people also literally riot after sporting events, and that's been happening since before Pokémon.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."