Not just selling, distributing or possessing pornography and their definition of pornography could be anything from intimate photos to suggestive, even sending a spouse intimate or suggestive media is unlawful. I do believe they are in the process of changing or have proposed a change to the current laws to enable them to tax those who do adult content, as those people have two issues. 1, declare the income and be prosecuted for distribution. 2, don't declare and be prosecuted for tax evasion, it's a catch 22. It will open a massive market if it is decriminalized, I think the person who has proposed the change said it would bring an estimated ₴1,120,000,000 around $25 million US or enough funding for 30k drones.