KYIV, Ukraine—Every few weeks, Svitlana Dvornikova leaves her home near the front line in Ukraine and travels to a rented luxury villa on the Mediterranean coast of France or Spain. She dons makeup, a wig, high heels and a pseudonym. Dvornikova isn’t there to escape the war. She travels abroad to stream solo shows to her one million subscribers..... ...Zhelezniak is now leading a push to legalize porn in Ukraine, arguing that doing so wouldn’t only help against corruption, but would raise up to $25 million a year in tax revenues.