Snape's Trustworthiness

[potioncat]

No: HPFGUIDX 103692

Katie wrote:
>      As pandrea100 says, it would get old pretty fast if Harry and 
> friends kept seriously doubting Snape's loyalty. I think they 
might 
> just be getting sharper.
>      I would like to think that JKR doesn't change the books 
> according to reader perception. There are a number of places she 
> could have gone the more popular route and didn't. (Heh. I wonder 
if 
> she reads this list, considering her quick change of the FAQ on 
her 
> site. I bet she does.) 
>    
>
Potioncat:
But the Trio does keep doubting and forgetting his loyalty.  And the 
readers often...very often....argue whether he is really serving 
DD.  JKR can do what she want's...and it could go either way.   

I think he is loyal and is watching out for the students (Harry in 
particular) and we will find out later just how "good" he has been.  
The point earlier, was that perhaps JKR didn't expect the readers to 
catch on so fast to his undercover "good deeds."  (Such as his 
wandering the halls to catch Harry breaking rules was really to 
guard Harry.)

No, I don't think she changes the books to please the crowd either.
Potioncat