I think Ayu really isn't that nice to people who she doesn't know :p
But she really is pretty and etc. :p
Ayu doesn't seem like she'd be 'hey look im so nice to everyone' in real life anyone.
If Ayu's fans went up to her, she'd probably shoo them away because she's busy or wants to not deal with them. Happened to my friend.
(who coincidentally is friends with someone whose dad helped/made the fairyland cabin.. he's an architect..)
Although I think that Ayu is not as bad as she was in 2001..
