I've read the entire thread. Seems to be a bit of agree to disagree.
Mainly because there are exceptions to every goddamn situation in life. Some roads seem private and gets locked by farmers, Other roads seems public and the public feels justified in using it, even when a lock prevents access for whatever reason.
Here is my solution:
On WD, we have a thread where we advise guesthouses, business, restaurants. Go here, but don't go there.
Can we not start a thread where you point or co-ordinates to a locked gate. Everybody can use it to do route planning. Maybe post the number who to call when the gate is locked.
It could help to communicate with the farmer few days before you go through the area, and you can talk to him again before you lose signal.
My 5c, because this thread is not getting anybody closer to a solution so far.