My reply is an inevitable "No." It's not that I don't think it's a good idea, or that it's a waste of time. I just know how I work. For starters I hand write my manuscripts which is slower in and of itself. Then I just work slowly. I tend to write a bit in the morning and then do other things the rest of the day. I don't spend hours writing. I'm not sure I could.
None of that adds up to 50,000 words in 30 days. But it does add up to the occasional novel and or novella.
But it does leave me on the outside for an entire month while other people freak out over word counts and plot problems.
Sometimes, just sometimes, I wish I could participate. I can see the appeal of the challenge. And it must be satisfying to see the words rack up and have something to show for a month of hard work. At the same time, most of the authors I know reach the end of NaNoWriMo, and promptly metaphorically shelve their NaNo novels in perpetuity, never to see the light of day.
So what exactly is there at the end of all that stress? Bragging rights? A sense of accomplishment? Well, I don't exactly know. But I do know that if you get to the end and make word count, have yourself a treat! You've done something at least. You wrote.