Have you see this particularly grouchy article on why you are wrong, wrong, wrong to even think about participating in NaNoWriMo?
To mock real novelists.
Who care enough to produce real novels.
She rants on
I am a writer. I just get terribly, terribly frustrated when something I have devoted my life to is treated in (so) cavalier a manner ... To be a writer is not a right, it's a privilege. And you cannot buy that privilege by writing "50,000 words of crap" in a month. The price is much, much higher than that.
She wrote this about last year's NaNoWriMo. Several incensed responses were published here (scroll down a little, the letter which proceeds those on NaNoWriMo is completely nutty).
And here is an account from someone who had a similar experience. She was harangued in a cafe by a 'proper' novelist, who demonded to know 'who is behind this?'
I wonder if there is anyone reading this who thinks that amateur writers undermine professionals, or that poor writers undermine the good? Is it true in the fanfic world? Poor fiction certainly clogs up the forums. However, my approach is the more people participate, the more fun for everyone, but then that's probably why I was thrown out of the Scouts.