I just don't get why, if Anon disagrees with elements of your fic, the critique couldn't be constructive and tactful. Putting up a fic for everyone to read is a brave thing to do - it's a part of your internal world put up for public scrutiny. No matter how awful someone's fic may be (and, I hasten to add, yours are anything but!), the effort put into it and courage to post it deserves respect, I think.