And don’t forget that many NSFW photos are posted by bots.
AH! Color me ignorant, but I didn't realize this. I mean I know it happens. It was happening a lot on the ol' G+, but I didn't know that happens here.
I never see #nsfw
posts in my stream at Pluspora or Diaspora because my personal stream is mostly filtered by my followed #hashtags
and my Aspects. The only time I see #nsfw
postings are in the Public streams, but those are anything goes free-for-alls, usually.