I think what annoys me most about this is that, like you mentioned, the owners of the complex made it extremely dog friendly and clear that they want the poop picked up.

Around here, the people that never ever friggin clean up their dogs poop, are the first to get mad about dog poop all over the place!! My dad took Mikey out last weekend for a poop walk and walked a bit down the block, and Mikey pooped on someone's lawn. My dad bent down to pick it up and the guy walking by was in shock. He complimented my dad and said he was happy to see someone finally cleaning up after their dog.