I understand that during its early beta, Nostalrius was instant 60, so there wasn't much attention paid to these things.
I find it to be a very important part of immersion to have all of the patrols working correctly. Some things like Kodos can patrol massive and random distances, and some patrols can randomly start sprinting like the centaur hunters.
Some simply walk around their camp, while others might just walk in their huts and walk out repeatedly.
Are these all actually fixed? It would require an enormous amount of research.