If this is anything like what happened on Flickr it's going to be a total pain in the ass for a few people, create moral anguish over flagging transgender (but non-sexual) content as "adult" to protect oneself, be meaningless to many, and do a good job of making "adult content" inaccessible to the general public who aren't logged in. Looking at my (limited) record of pageviews on Flickr, I can see the day they flipped that switch.

Also, Convent of Hell is probably my favorite graphic graphic novel, and that might be my favorite panel, too. :-)