It would appear that Google’s Blogger is cracking down on the existing terms and conditions of their use, about monetising from adult content. Blogs are set to be deleted from June 30th, not giving people much time to sort their content.
At the moment this seems to be Blogger blogs (blogspot) which has side bar banners, adverts and affiliate links to adult sites where the blogger could make money, but this is still in the process of being clarified.
What it may mean is links and banners to porn sites or pornographic imagery. You would be best advised to look into moving from Blogger however, as it is not in my opinion a stable platform for your adult content blog.
In the meantime if you have any questions about moving to WordPress, going self-hosted or domain name purchase, please contact me through here and I will do my best to help.