Hi again, Mikey from lemmynsfw.com here again. So every day we get several reports from lemmy.world users about posts not being tagged NSFW when they are actually tagged NSFW.
At first I thought this might be some kind of federation lag, maybe the OC forgot to put the NSFW tag on their post, then edited it, but the edit took some time to federate and that’s why lemmy.world users saw it without the tag. While that’s still possible, lemmy.world is the only instance that I’m getting consistent reports from about nsfw posts not being tagged when they are tagged. You’d think that if it was a federation issue I’d be getting them from everywhere, not just here.
Anyhow, I don’t much mind the reports because they take zero effort to resolve, but it is something we may want to look into.
In the web interface on our instance all posts are flagged nsfw by default, but you can uncheck it on a per post basis. I think that various apps have different settings that don’t default that way, nor will posts coming from other instances.