Yes, I'm aware everyone has at least some traits of it, but most people who've met me seem to think I have a lot of traits of it.
I may be egotistical, grandiose and self-absorbed, but I don't have NPD.
NO, I do not recommend the site for the hope of winning any contests. The point system is rigged where the longterm members who have accumulated 150-300 x the points of newer members can "throw their votes" to whoever they want to win, and undercut any entry they want to lose. This is supposed to be moderated, but the abuse happens.
The point is to use the site to post art/writing and get critique from other users anonymously.
Many of the more experienced members will help newer members improve their techniques.
So it's really a good place to experiment. And create an online portfolio of your work under each category. Maybe this forum could have pages here where members can post a 'gallery' of art/writing in their profiles, similar to this other site?