oh shut the fuck up, honestly. Why the fuck would I go and do something that I DON'T ENJOY DOING.
It's all in personal preference, not only that and a lot of the time it's normal skateboarders skitching, and ending up dead, in my town at least. Skateboarders have always had a bad reputation, before I was born, and probably before you were too, get fucking used to it.
Also, it's people like you who don't help the situation what so ever. Go make a petition or something to ban longboards if you're so butthurt about them.
Also how the fuck can you speed check if a car is coming if you're sending yourself down some stairs and hand rails, you can't you dumb fuck. I can find way more material of people doing exactly that, and getting hit by a car, than longboarders bombing hills and hitting cars.
Your entire argument is invalid, fuck you, go get hit by a car or get a fine or something.