They're good if one creates corporate-driven milquetoast art. Pixel or anime is the preferred style. Oh, and gazillion of Madness, Mario or Sonic "parodies". Anything else that is indie or alternative is not welcomed there. And they are actually much more edgy nowadays than they had ever been before. The difference is that they're passive aggressive assh*les, as opposed to trolls, or jokesters before. If you're an artist, don't bother, the website is nowadays kinda dead, with a very small, but tight-knit community, who pat each other on the back. And if you ever get ever any interaction there, it's going to be highly unpleasant.
tl;dr avoid ng