These signs are good in that they are easy to make, easy to understand and also very cheap. In Minetest, they are good in that they don't create any entities. Whole mod including textures takes only 20.8KB. Make a network connecting all your settlements!
Hiking Redo
Complete set of hiking signs
Reviews
Review
Simple idea, great on servers
Players did make good use of these hiking signs on the Tunnelers' Abyss server. Whole networks of paths were created for the community. It is very enjoyable to follow them.
The hiking signs motivate path/road building.
Definitely a recommendation.