The park closest to my apartment is like this.
I think it's a vicious cycle. One turd gets left, and people see it and say, well *I'm* not going to pick it up if there are already turds here, and before you know it, the entire park is covered. Every time I took Thor there, if he was sniffing something, it was probably dog poop.
They recently did a major cleanup there and it's actually sanitary for Thor to run across the grass now. But I can see signs up turd build up again.
I can see getting caught without a baggie every so often, or maybe you don't notice your dog poops, but come on.
And in a building hallway? That's unforgivable. Those people are going to hell.