i believe he is saying that on the old design, if you applied nudity/violence flags on your uploaded image, when you were in the gallery, underneath the thumbnail image you would see info that contained the following:

image title - artist's name - [in red and in parentheses 'this image contains nudity/violence] - what gallery the image belonged to & the genre - the date of posting - and maybe the time of the posting

now, on the new design, you do not get the red bracketed nudity call out underneath the thumbnail, and i think he is asking about that since it's no longer there.

the whole visible-to-others-under-your-thumbnail warning thing, and/or the use of the Advisory thumbnail, has always been a bit of a catch-22 in the galleries:

even though we had filtering options on the old site as well, some folks liked being forewarned, either with that info under the thumb and/or with the use of the Advisory Warning thumbnails because maybe they weren't filtering, but needed to change what they chose to open/not open due to situations [think lunchbreak at work, or kids in the room, etc].

the opposite use would be that some folks would abuse things a little bit by checking nudity/violence with the hope to garner more views even whenst there was nudity, but no naughty bits showing that truly merited the flag.

sometimes it can still be confusing as to whether or not to click the nudity/violence tags on upload, and i've always played it safe - when in doubt, tick the box. but i've also had one or two instances where i received messages from mods who removed the warnings as they deemed it unnecessary; for example a bloodied figured where violence has happened, but the violence to bloody them is not happening in the image so the violence is implied/inferred instead of being in-your-face, that kind of thing.