Hello,
We have been experimenting new advertisers for NSFW contents such as Nudity posts.
We noticed that the quality of one of our advertisers was not as expected, and we removed those from Similar Worlds.
We apologize for any inconvenience.
Due to some errors, NSFW ads might have also appeared in non-NSFW posts or photos.
If you are still experiencing this kind of ads, please let us know through a Staff Support Ticket:
https://similarworlds.com/support
Thank you
-SW Team