What NSFW.xxx offers
That structure is the site's core idea: it gathers the adult photos, GIFs, and clips that circulate through Reddit's NSFW communities and files them so a specific model, amateur, or subreddit theme reads as a running feed instead of a hunt from post to post.
Because the material is crowdsourced by nature, the catalog skews toward amateur self-posts, fan accounts, and reposted social-media content as opposed to polished studio productions, and any single item is only as reliable as the community it came from. For visitors who already follow Reddit's NSFW side, the draw is convenience — one address for the steady picture-and-clip flow that would otherwise mean opening subreddit after subreddit.