I hear that complaint and I think it was certainly more true when first launched, at least in Seattle and DC. Nowadays it seems like people are parking them better on average
At least not in my metro. It's still haphazardly scattered everywhere. The thing is it need not be the riders themselves who do this. Unlike a docked bike that can't be moved the scooters can be lifted by anyone. Vandals definitely move it, throw it in water bodies, cut the wire and sometimes just knock it over.
I’m in Denver. I’ve seen no change. Plus we have numerous different companies operating now. I regularly see them blocking the sidewalk entirely or all of them have been toppled over.