I can understand that though. You can get very attached to characters you are writing. They are your baby and writers get very protective of them especially if people start writing them OOC. Is is like "WTF, he would never do something like that! Whelp"
Martin hates fanfiction written for ASOIF. I didn't know that until I was 50,000 words unto mine and I will admit it has really put me off continuing it
Soooo... that humping gif, yeah? .
I think I read somewhere that the only reason GRRM doesn't like fanfiction is that he thinks it makes writers lazy, since they're not world-building for themselves or coming up with characters, but simply borrowing someone else's and having half the work done for them?
I can see his point, but I still think that fanfiction is a legitimate art-form that's been around since before humanity even knew how to write (no single person wrote all ancient myths, after all) and shouldn't be disguarded as just "bad writing".
(Besides, Stephenie Meyer's entire body of work reads like particularly bad fanfiction, so it's not like "real" authors can look down their nose at fanfic writers either)