Alright, I suppose you can look at it that way, but I'll just answer with a simple counterargument: has it ever been tried?
It seems to me exactly the opposite, a rational person will use all the tools available (barring cheating of course) to avoid interactions which could cause any inconvenience (or maybe it's just my opinion and I'm not actually a rational person).
This leads to having everything scripted the way he / she wants, which is actually a rather boring version of singleplayer where you are the writer / director / producer. Maybe a writer's mind enjoys such a static experience more, but every once in a while stepping out of your comfort zone is a good thing.
Now, don't get me wrong, maybe it wouldn't work at all, because as you say it would be hard too hard to track people, or maybe it would lead to I don't know... People actually asking other people for leads / directions / going undercover / stalling whoever they're hunting...
Maybe it's just that I haven't made any real enemies yet so I don't really have the fear of being hunted down like a fox...
