On the bright side, this definitely seems to be getting people outside and active.
The silly anecdotes I've read online aren't isolated incidents, and I have my own to add to the list.
This afternoon, I ran into and spoke with three adults (and saw several kids) walking around my town's downtown area, all hunting for pokémon and pokéstop loot. One of the adults had just come from a group of ten more who were camping in a nearby café (and drinking beer) that has a pokéstop.