And a comment on trolling; I think it's fairly clear what's a troll and what's not. Trolls will either make personal attacks (e.g. "Why did you post this, you asshole?") or make broad criticisms without qualifying them (e.g. "Your images suck"). It's perfectly OK - for those artists that want constructive feedback - to post something like "You should take more care over your images" or "you need to improve your postwork" as long as these statements are backed up with a bit of detail, because although this sounds harsh, it's direct, useful and to the point. I really don't think inviting constructive feedback will feed the trolls. OK, anonymous feedback might, but that's just something additional that I was thinking about.