As I'm getting older, I gave up MTB because I can't get in shape enough anymore so I'm looking forward into developing e-bikes for trail use. I'd like to revisit some trails one day on an electric bike. Now I read about banning them from trails. These are my thoughts.
1. I see much more destruction and garbage on some hikers only trails than I see on MTB allowed trails. Probably bikers don't have enough freedom to go off the trail as people on feet do and don't carry as much plastic bottles, food, napkins and dog s*it as hikers do.
2. If the e-bike is basically no different in its shape than normal MTB bike and the motor is only assisting, who will care about this and inspect the bike even if prohibited? What if the motor is turned off and not being used, especially downhill?
3. In my opinion, regulating speed happens by itself in most cases. There is no reason to take a powerful motor bike on a trail crowded with bikers and hikers slowing the traffic anyway. I think that simple information about typical use and expected speed limit at the trailhead is all what we need.
4. I think that electrically assisted MTB bikes is a great idea filling the gap between human powered bike and dirt bikes.
5. The laws and regulations are not carved in stone. Lets relax them in the beginning, see the real hazard to people and environment and then act on it. First on case by case basis, then by establishing some more universal rules.
6. I still think that horses are the worst on trails.
7. I also ride mountain bikes on trails where dirt bikes are allowed and I never noticed any more damage than on other trails. One example "Devils Gulch" in Washington State. Fantastic trail for MTB.