A friend was recently injured riding the Provo River Trail due to negligence of a longboarder. The longboarder bailed at the last second and projected his board under my friends wheel. He was knocked out for around 10 minutes and suffered broken bones. He is a top notch rider and was in no way at fault. We have all had close calls with longboards on this path.
For the record, I am a “live and let live” kind of broski, and am generally against banning anything, but enough is enough. There was a movement underway a couple years back to keep longboards off the path due to the frequency of this type of incident, but the longboarders rallied to keep themselves “legal”.
Before anyone says it, yes, bikes go faster than skateboards… but they also have brakes.