Again, single voxel beacons (which seems to be what they have planned now except they are infinitely tall and low) so say if you want to make a road you literally just make the road and beacon each individual block, you would most likely like to beacon one blog on either side out though and maybe beacon a few high, but if you do that then it should stay with no problem.
the problem however with ‘‘only keep travelled roads active’’ is if we end up with a very complex infrastructure and maybe a single person would like to have a road from his house to the nearest city just so he can find it, if he is the only one using that road then clearly it would disappear, why would you punish a person who is WILLING to use a beacon on the road, by saying ‘‘i know you can pay, but nope, only main travelled roads’’ same thing if we get dungeons or raids, if there is a raid zone then you could make a road from the nearby city to it, but if it requires a certain amount of people it will most likely only be used in the weekends where people have time. what if you want to dig a tunnel through a mountain so WHEN people need to get through a mountain they dont need to climb all the way to the top and down but can go through it, say that is only used once every 2 weeks when people find it, but imagine the joy when they do, the joy of finding a road made by another player purely selflessly to lessen the burden of travellers. you dont think that is worth having?