I'm still a believer of the "pixiv stuff should stay on pixiv" and "DA stuff should stay on DA" but, since there are no rules, and some drawings are pretty high quality enough, i try to judge based on objective quality standards (like res, artifacts, etc). Of course every mod will end to have to judge artwork based on "it's terribad" "it's so-so". Hence why there are more mods now..if someone feels ambiguos, someone else can give another opinion.Also about the "artist permission" stuff, i'm just gonna say the usual. "You posted it on the internet? Then let people enjoy it and don't cause pointless credit drama".