I just discovered that an old friend whom I lost contact with a few years ago started drawing hentai soon after we lost contact. Have you had any similar experiences?

This came as a shock to me. I never knew he was into this kind of entertainment. He is a pretty good artist. He mainly used to draw video game characters normally, and in 2009, he moved away and I never got his contact information. Well, last night I discovered that he was drawing hentai for money only just two weeks before we lost contact. He's a quite popular member on Hentai Foundry, and gets paid well. Most of his art is normal hentai, but he does have bestiality, egg-laying, BDSM, furry... I don't know if I should contact him or not. So, has anyone on Reddit ever discovered that a friend was doing strange/new things after they lost contact with their friend?