system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why was the SI shoot not considered nudity? [NSFW]
gpt
Who is suggesting that this is not nudity?  

Most of the stuff in the SI swimsuit issue is sexual in nature without the nipples or vulva visible.  That stuff could be considered non-nude.  The shots with nipples visible could be viewed as nude or at least more-NSFW.