I agree that such clear outlines of nipples are NOT SFW/childfriendly according to the society, I'd put a mature tag regardless what DA staff did, they make loads of dumb decisions on the deletion/not deletion aspect, allowing explicit porn to stay unremoved but deleting tame erotica at the same time, often contradicting their own policy. Not to mention they have their own definitions and flawed perception, often acting blind to evidence f that's how they feel like about you. And if this Deviation was forced the mature tag before, it's because enough of people reported it as mature = were incomfortable seing it without it(I don't think the staff would admit to their own mistake and fix it, if the tag was given by the staff, they would not remove it later, thaey are too childlishly proud to do that). For now, drawn outlines of female nipples are still considered NSFW and not child friendly in the society, even if more and more people are getting used to bra-less women and that part might change in the future, but we're still not there and you(everyone) should keep that in mind and just hide NSFW content from SFW-browsing users. Honestly, you're not getting more exposure that way, who doesn't want to see NSFW won't appreciate a NSFW piece, or they wouldn't be browsing in SFW mode, your target audience is people browsing in NSFW mode anyway. Fighting against the mature tag so desperately leads you nowhere but to, well, people potentially feeling disrespected and hating on you. And on a US-based website that does allow porn that I use, you'd get an administrative action and get a mature tag on this very image(and any others with this level of nipple visibility). Why bother angering people since you have absolutely no benefit from it? Also you can try to put the non-strict mature tag on and in the top line of the description give the general reason why it's on, like "nipple peekign through', I did that pretty often to pieced I considered borderline for some reason.