I remember a while back -- ok, maybe it was five years ago by now -- that it was stated that, in general, stories and images do not need to be tagged if they are on boards approved members can see. Specifically I'm going to cite the NSFW tag. Basically, the assumption was, if you're on a members' board, NSFW content may exist, browse at your own risk.
Recently on the Finders and Seekers sub-board I have seen nudges from some members stating that posters need to tag and spoiler their images NSFW when there is no such notification on the thread anywhere, nor any such requirement on the board itself.
What is the actual rule here? I feel like the nudges are dubious if in fact the nudgers are not applying and adhering to the actual rules of the site.