Looks like the pic that supposedly got him banned isn't even in here. For those who want to see it, it's here: http://callmepo.tumblr.com/post/119574212071/azaroth-metrion-zat-ass-by-callmepo-allergies-at
The "official" reason for the ban is because one of DA's delusional mods decided that it was clearly filthy dirty child-porn. Really, it's because the guy's had a grudge against CMP for about a decade, and has been searching desperately for excuses to get rid of him as punishment for some imagined slight.
Important lesson here: if you're using DA to store stuff, back it up, there's no telling when a power-mad mod will declare your drawings containing obviously adult characters to be kiddie-porn, and will ban you for it.