Yes, play by post most certainly is still a thing. Most RPG forums (e.g. https://forum.rpg.net/ https://forum.rpg.net/) have a play by post subforum, and https:

Yes, play by post most certainly is still a thing. Most RPG forums (e.g. https://forum.rpg.net/ https://forum.rpg.net/) have a play by post subforum, and https://rpol.net/ https://rpol.net/ is a forum dedicated to play by post.