Self-therapy, I was thinking that posting about certain things in a light-hearted or 'ungrounded' or consequence-less manner can be therapeutic to people in the event that it allows for them to put down their thoughts, regardless of if they are relevant to discussion.
I myself have a corner to add, the 'observation corner'. Here you can lounge in a nice comfy chair and think about stuff, real or imagined. Of course, imagined is the preferred realm of thought but the quiet sense of space here probably lends itself to 'real-thought' as well. Anyways, if you are imagining things, then the wall in front of you displays your imaginations, the chairs have headphones, etc. This is to provide some fun feedback, as you can experience your imaginary world as it would appear in a picture/movie/game, alongside your imaginations of it. Allows for immediate evaluation of if you approve of what content your imagination is generating.