1) https://www.openstreetmap.org/node/9543463026 Here is a sign vehicle=no as you have pointed out. But you have added just motor_vehicle here https://www.openstreetmap.org/way/265309976. Which is not bad, not good. In visitor's rules is written, that this road is accesible for cars. But you could not know this so it's okay.
2) Why you have added swing gate here? https://www.openstreetmap.org/node/4305010087 There already was lift gate. When I was there month before, I do not remember that, there were two gates.
3) Why you have changed this gate to abandoned? https://www.openstreetmap.org/node/4305010088/history This gate is the newest and month back it was in good condition.