I hate the guards in this game.
It all started when some guard came running up to me, claiming to know me. I was wondering if I should ignore him or stab him in the chest. In the end, he said I had to bribe him for something I may or may not have done, or go to jail. So I did what any self-respecting Nord would do: I cut off his head and tossed it at his colleagues.
They did not approve.
Seriously, though, you're the most badass person in all of Tamriel and people are treating you like you're some rookie with a wooden sword. I walk into town in my Daedric armor, with all sorts of magic vibrating the air around me and guards just walk up to me and say "Sup, you're the new kid, right? Do you, like, fetch mead or something? Har har, move along, punk!"
So I turn them into ice sculptures and people get mad at me. What did they expect? I've single-handedly destroyed the Dark Brotherhood, killed the God of Destruction and conquered any foe in my way. Did they think I'd just ignore it when someone insults me like that?
What I'm saying is, I think Bethesda should have done more to enable some kind of progression in the NPC AI with regards to your standing. Perhaps the guards could be frightened/happy depending on your "karma", or at least respectful when talking to someone who is not only their Thane, but also a powerful warrior and/or magician.
____________________________Please "talk up" if your comprehension white-shifts. I will use simple-happy language-words to help you understand.