The reason they're treated like trash, by both the company that put them there and by pedestrians, is because that is what they are.
I think the rental bikes which have a fixed docking station are a better design.
I think I'm the intended use case because I live about 2 miles (3.2km) from an entertainment district. I can walk it, and I have done so, but it takes quite a while, around 45 minutes. On a scooter it takes like 10.
Because of parking costs, scooter is cheaper than driving. It might even be faster. I own a bike, so I could ride that, but I don't like parking it in a busy downtown area.
There's also a bus I can take, and sometimes I take bus one direction and scooter the other if the bus schedule doesn't work for me.
I admit many people park scooters in a very inconsiderate way, but I always park carefully out of the way, so I don't feel bad about that personally.
I’m 100% for walking places but it’s important to have options once you start getting out that far.
Now Santa Monica does have a great bike share infrastructure that I also used quite a bit, but nothing is more frustrating that getting on a well used bike and having the brakes hardly work or the crank constantly slipping as you push the pedal downward. Don't get me wrong, you can totally get a bad scooter that isn't running well, but I think I ran into more worn down bikes, likely due to the bike program having been around longer.
My 2 cents, the more options the better.
EDIT: Also wanted to note, Santa Monica has a lot of bike lanes, which made riding the scooters around much easier and safer from my perspective.
The helmetless riders are a real issue. And the injuries caused by the morons using them are a business model externality that isn't dealt with.
I live in a city that banned the companies but see a few people still commuting on them in the bike lane.
They're mostly focused on the scooters now (or, well, yesterday) but many cities have bikeshare systems backed by Uber.
Scooters are a fad that was never needed. Bikes or mopeds like Revel are 10 times more useful. I don't think scooters replace anything of note, since you can pretty much walk the same distance. They're only fun for tourists and left in the sidewalk for everyone else to stumble over.