The issue for me is the co-opting of public space for private enterprise in the least considerate way possible. People leave these scooters like litter in parks, sidewalks, and lakes.
You could object that this is an overly precious perspective, but I would counter that similar startups (ZipCar most notably) have solved this by contemplating the logistical implications from the get go.
I personally would not object the assigning some percentage of parking spots in neighborhoods as designated parking for shares, and would hope such a contract will emerge.
I certainly understand the dockless advantage here, but the result for those of us who don't use them is garbage some random company feels entitled to clutter up the sidewalks with.