Why was it moved. I'm so confused.
Ice explained it well. If two threads pop up in a forum and are basically about the same thing, a moderator usually merges them to keep the index neat.
The Roleplay Stage/Casting subforums feature post-by-post roleplaying where we usually put some effort into creating characters and plot. It's not often very casual. But in this thread, you can do what it seemed like you were interested in: announce that you'd like to roleplay randomly as a pokémon or something and hope that someobody contacts you via Private Message so you can set things up!
Or, if you think you'd be interested in more planned roleplaying, you should totally head over to
Roleplay Casting and see if any opening post looks interesting to you :3 I can recommend
Begin Again or
Stars of Sinnoh if you're looking to play a pokémon trainer going on an adventure and want some freedom.