Pallas I'm not sure. But it would be awfully nice to just be able to post however you want on any piano-related topic of your choice.
This is my feeling. I don't understand the need to categorize everything "correctly." It will make some people stress about the "proper" place to post things. Personally I just pull up all discussions anyway; I rarely even go to a specific forum. Maybe this is something to discuss more in the future, if the site grows and things start to seem chaotic?