My guess is that each platform will have its own smaller names applied to it (e.g. kbinners, lemmites, etc.) and each variant will be interchangeable, then as things settle down and the dust clears, there would be a more common, less “exclusive” name like “posters” as someone mentioned. The email comparison comes to mind, we don’t go around calling each other “gmailers” or “outlookers”, but addresses or emails.